CVE-2025-10263

CRITICALPre-NVD 9.19.1
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-09. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week

Also known asEUVD-2025-210084 (ENISA EUVD) · GHSA-x9c8-763w-495x (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76A may allow writes to resources owned by a higher exception level.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
45th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 9, 2026

Last Modified

September 4, 2026

Advisory Details (11)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:49031
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support

https://access.redhat.com/errata/RHSA-2026:47248
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:40764
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:36349
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:36348
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:36018
Red HatMentions a patch (unverified)

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:34911
Web page

XSA-493 - Xen Security Advisories

http://xenbits.xen.org/xsa/advisory-493.html
Web page

oss-security - Xen Security Advisory 493 v2 (CVE-2025-10263) - Arm: Completion of memory accesses not guaranteed by completion of a TLBI

http://www.openwall.com/lists/oss-security/2026/06/09/13
Web page

Documentation – Arm Developer

https://developer.arm.com/documentation/112137
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2025-10263

Vendor Advisories for CVE-2025-10263(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-oracle-edge (5.15.0.1114.120~20.04.1) @ focal2026-11-02ubuntu
ubuntulinux-tools-ibm-edge (6.8.0-1066.67~22.04.1) @ jammy2026-11-02ubuntu
ubuntulinux-tools-ibm-7.0 (7.0.0-1013.13) @ resolute2026-11-02ubuntu
ubuntulinux-tools-azure-fde-lts-26.04 (7.0.0-1013.13) @ resolute2026-11-02ubuntu
ubuntulinux-virtual-6.8 (6.8.0-142.142) @ noble2026-11-02ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1019.19) @ resolute2026-11-02ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-11-02ubuntu
redhatopenshift/ose-rhel-coreos-9:417.94.202608250221-02026-09-03redhat
redhatopenshift/ose-rhel-coreos-9:414.92.202608172040-02026-08-31redhat
redhatopenshift/ose-rhel-coreos-9:416.94.202608150307-02026-08-31redhat
redhatopenshift/ose-rhel-coreos-9:415.92.202608180329-02026-08-31redhat
redhatopenshift/ose-rhel-coreos-8:412.86.202608080425-02026-08-20redhat
redhatopenshift/ose-rhel-coreos-9:413.92.202608111330-02026-08-20redhat
redhatopenshift/ose-rhel-coreos-9:4.19.9.6.202608120446-02026-08-19redhat
redhatopenshift/ose-rhel-coreos-9:418.94.202608111829-02026-08-19redhat
redhatopenshift/ose-rhel-coreos-9:4.21.9.6.202608122143-02026-08-18redhat
redhatopenshift/ose-rhel-coreos-9:4.20.9.6.202608121719-02026-08-18redhat
redhatkernel-0:6.12.0-55.98.1.el10_02026-08-17redhat
redhatkernel-0:4.18.0-477.158.1.el8_82026-08-10redhat
redhatkernel-rt-0:5.14.0-284.186.1.rt14.471.el9_22026-08-07redhat
redhatkernel-0:5.14.0-427.143.1.el9_42026-08-07redhat
redhatkernel-0:5.14.0-284.186.1.el9_22026-08-07redhat
redhatkernel-0:5.14.0-570.131.1.el9_62026-07-31redhat
redhatkernel-0:4.18.0-372.204.1.el8_62026-07-31redhat
redhatkernel-0:4.18.0-305.200.1.el8_42026-07-28redhat
redhatopenshift/ose-rhel-coreos-9:4.22.9.8.202607152026-02026-07-21redhat
redhatkernel-0:4.18.0-553.140.1.el8_102026-07-07redhat
redhatkernel-rt-0:4.18.0-553.140.1.rt7.481.el8_102026-07-07redhat
redhatkernel-0:5.14.0-687.22.1.el9_82026-07-06redhat
redhatkernel-0:6.12.0-211.30.1.el10_22026-07-02redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(17 across 9 ecosystems)
Debian:11(3)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)
  • every version up to 5.10.259-1: fixed in 5.10.259-1
—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)
  • every version up to 6.1.176-1~deb11u1: fixed in 6.1.176-1~deb11u1
—
xen4.14.2+25-gb6a8c4f72d-2 ... 4.20.3+127-gc42374a105-1 (46 versions)
  • every version on: no fix on record
—
Debian:12(3)
PackageVulnerable rangeFix by version rangeDependents
arm-trusted-firmware2.10.0+dfsg-1 ... 2.9.0+dfsg-3 (10 versions)
  • every version on: no fix on record
—
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
xen4.17.1+2-gb773c48e36-1 ... 4.17.5+72-g01140da4e8-1 (14 versions)
  • every version up to 4.17.7-0+deb12u1: fixed in 4.17.7-0+deb12u1
—
Debian:13(3)
PackageVulnerable rangeFix by version rangeDependents
arm-trusted-firmware2.12.1+dfsg-1, 2.12.16+dfsg-1
  • every version on: no fix on record
—
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
xen4.20.0+68-g35cb38b222-1 ... 4.20.2+7-g1badcf5035-2 (6 versions)
  • every version up to 4.20.3+127-gc42374a105-0+deb13u1: fixed in 4.20.3+127-gc42374a105-0+deb13u1
—
Debian:14(3)
PackageVulnerable rangeFix by version rangeDependents
arm-trusted-firmware2.12.1+dfsg-1
  • every version up to 2.12.16+dfsg-1: fixed in 2.12.16+dfsg-1
—
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (146 versions)
  • every version up to 7.0.13-1: fixed in 7.0.13-1
—
xen4.20.0+68-g35cb38b222-1, 4.20.2+37-g61ff35323e-1, 4.20.2+7-g1badcf5035-1, 4.20.2+7-g1badcf5035-2
  • every version up to 4.20.3+127-gc42374a105-1: fixed in 4.20.3+127-gc42374a105-1
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.18.5-r9: fixed in 4.18.5-r9
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.19.5-r4: fixed in 4.19.5-r4
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.3-r4: fixed in 4.20.3-r4
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.20.3-r4: fixed in 4.20.3-r4
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
xen—
  • every version up to 4.21.1-r6: fixed in 4.21.1-r6
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(5)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 28× in last 7d / 96× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 807 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 707 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 05:20 UTCEG score recompute
  2. 2026-11-02 05:20 UTCVendor advisory
  3. 2026-11-02 05:19 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  4. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  5. 2026-11-01 05:13 UTCEG score recompute
  6. 2026-11-01 05:13 UTCVendor advisory
  7. 2026-11-01 05:13 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  8. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-10-31 05:07 UTCEG score recompute
  10. 2026-10-31 05:07 UTCVendor advisory
  11. 2026-10-31 05:06 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  13. 2026-10-30 05:00 UTCEG score recompute
  14. 2026-10-30 05:00 UTCVendor advisory
  15. 2026-10-30 05:00 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  17. 2026-10-29 04:54 UTCEG score recompute
  18. 2026-10-29 04:54 UTCVendor advisory
  19. 2026-10-29 04:53 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  20. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  21. 2026-10-28 04:47 UTCEG score recompute
  22. 2026-10-28 04:47 UTCVendor advisory
  23. 2026-10-28 04:47 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  24. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  25. 2026-10-27 04:41 UTCEG score recompute
Show 75 more
  1. 2026-10-27 04:41 UTCVendor advisory
  2. 2026-10-27 04:40 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-26 00:06 UTCVendor advisory
  5. 2026-10-26 00:05 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-10-25 16:49 UTCEG score recompute
  7. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  8. 2026-10-24 23:59 UTCEG score recompute
  9. 2026-10-24 23:59 UTCVendor advisory
  10. 2026-10-24 23:59 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-10-23 23:53 UTCEG score recompute
  13. 2026-10-23 23:53 UTCVendor advisory
  14. 2026-10-23 23:52 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  15. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  16. 2026-10-22 23:45 UTCEG score recompute
  17. 2026-10-22 23:45 UTCVendor advisory
  18. 2026-10-22 23:45 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  19. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-21 23:38 UTCEG score recompute
  21. 2026-10-21 23:38 UTCVendor advisory
  22. 2026-10-21 23:37 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  23. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  24. 2026-10-20 23:31 UTCEG score recompute
  25. 2026-10-20 23:31 UTCVendor advisory
  26. 2026-10-20 23:31 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  27. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  28. 2026-10-19 23:25 UTCEG score recompute
  29. 2026-10-19 23:25 UTCVendor advisory
  30. 2026-10-19 23:25 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  31. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  32. 2026-10-18 22:49 UTCEG score recompute
  33. 2026-10-18 22:49 UTCVendor advisory
  34. 2026-10-18 22:49 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  35. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  36. 2026-10-18 05:53 UTCEG score recompute
  37. 2026-10-17 22:42 UTCEG score recompute
  38. 2026-10-17 22:42 UTCVendor advisory
  39. 2026-10-17 22:42 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  40. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  41. 2026-10-16 22:33 UTCEG score recompute
  42. 2026-10-16 22:33 UTCVendor advisory
  43. 2026-10-16 22:32 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  44. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  45. 2026-10-15 19:13 UTCEG score recompute
  46. 2026-10-15 19:13 UTCVendor advisory
  47. 2026-10-15 19:13 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  48. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  49. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  50. 2026-10-14 12:59 UTCEG score recompute
  51. 2026-10-14 12:59 UTCVendor advisory
  52. 2026-10-14 12:58 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  54. 2026-10-13 12:50 UTCVendor advisory
  55. 2026-10-13 12:50 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  56. 2026-10-12 17:27 UTCEG score recompute
  57. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  58. 2026-10-12 12:41 UTCVendor advisory
  59. 2026-10-12 12:40 UTCGHSA enrichmentGHSA-x9c8-763w-495x · GitHub severity CRITICAL · GitHub CVSS 9.1
  60. 2026-10-11 20:57 UTCEG score recompute
  61. 2026-10-11 19:07 UTCEG score recompute
  62. 2026-10-11 15:49 UTCEG score recompute
  63. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  64. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  65. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  66. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  67. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  68. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  69. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  70. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  71. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  72. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  73. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  74. 2026-09-29 15:18 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  75. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 43rd percentile

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-10263?
CVE-2025-10263 is a critical-severity vulnerability; its CVE record was published on June 9, 2026. Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A76 & A76A may allow writes to resources owned by a higher exception level.
When was the CVE record for CVE-2025-10263 published?
The CVE record for CVE-2025-10263 was published on June 9, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 4, 2026; the record at its source may have been updated since.
Is CVE-2025-10263 actively exploited?
CVE-2025-10263 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-10263?
CVE-2025-10263 has a CVSS v3.1 base score of 9.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-10263?
A fix for CVE-2025-10263 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-10263 are linked in the Vendor Advisories panel on this page.

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