CVE-2025-40242

HIGHPre-NVD 7.07.0
EchelonGraph scoreMEDIUM confidence

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

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2025-12-04. A secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2025-201217 (ENISA EUVD) · GHSA-4g8j-hwjq-h8fr (GitHub Security Advisories)Source: ENISA EUVD

7.0EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.0Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

gfs2: Fix unlikely race in gdlm_put_lock

In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and gdlm_bast(). To prevent it from dereferencing freed glock objects, only free the glock if the lockspace has actually been released.

CVSS v3
7.0
EG Score
7.0HIGHmedium confidence
EG Risk
32
EG Risk 32/100

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)
Severity70% × 45%
Impact severity (EG Severity): CVSS 7.0 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.1%
EPSS %ILE
3rd
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 (7.0): severity, escalated by confirmed exploitation. This CVE's 7.0 is its impact severity (EG Severity), not escalated.

EG Severity
7.0 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

December 4, 2025

Last Modified

October 19, 2026

Advisory Details (5)

Auto-updated Aug 2, 2026
Patch available.
Web page

gfs2: Fix unlikely race in gdlm_put_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/64c61b4ac645222fa7b724cef616c1f862a72a40
Web page

gfs2: Fix unlikely race in gdlm_put_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5fdc1474e678eea1700aa266c0b7c2c96f81dd0d
Web page

gfs2: Fix unlikely race in gdlm_put_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4913592a3358f6ec366b8346b733d5e2360b08e1
Web page

gfs2: Fix unlikely race in gdlm_put_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/28c4d9bc0708956c1a736a9e49fee71b65deee81
Web page

gfs2: Fix unlikely race in gdlm_put_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/279bde3bbb0ac0bad5c729dfa85983d75a5d7641

Patch Availability(19)

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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)
  • every version on: no fix on record
—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)
  • every version up to 6.1.170-1~deb11u1: fixed in 6.1.170-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)
  • every version up to 6.1.170-1: fixed in 6.1.170-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.57-1~bpo12+1 (6 versions)
  • every version up to 6.12.57-1: fixed in 6.12.57-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.17.5-1~exp1 (75 versions)
  • every version up to 6.17.6-1: fixed in 6.17.6-1
—

Additional Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 10× in last 7d / 48× 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 98 of 242 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 144 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-03 16:44 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-11-02 16:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  4. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  5. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  6. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  7. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  8. 2026-10-27 19:09 UTCEG score recompute
  9. 2026-10-27 19:09 UTCVendor advisory
  10. 2026-10-27 19:08 UTCGHSA enrichmentGHSA-4g8j-hwjq-h8fr · GitHub severity HIGH · GitHub CVSS 7.0
  11. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  13. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-25 16:28 UTCEG score recompute
  15. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  16. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  17. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-19 19:29 UTCEG score recompute
  21. 2026-10-19 19:29 UTCVendor advisory
  22. 2026-10-19 19:28 UTCGHSA enrichmentGHSA-4g8j-hwjq-h8fr · GitHub severity HIGH · GitHub CVSS 7.0
  23. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-10-18 05:34 UTCEG score recompute
Show 73 more
  1. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  2. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  3. 2026-10-15 22:49 UTCEG score recompute
  4. 2026-10-15 22:49 UTCVendor advisory
  5. 2026-10-15 22:49 UTCGHSA enrichmentGHSA-4g8j-hwjq-h8fr · GitHub severity HIGH · GitHub CVSS 7.0
  6. 2026-10-15 22:10 UTCEG score recompute
  7. 2026-10-15 22:10 UTCVendor advisory
  8. 2026-10-15 22:09 UTCGHSA enrichmentGHSA-4g8j-hwjq-h8fr · GitHub severity HIGH · GitHub CVSS 7.0
  9. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  10. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  11. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  12. 2026-10-12 17:06 UTCEG score recompute
  13. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  14. 2026-10-11 20:38 UTCEG score recompute
  15. 2026-10-11 18:50 UTCEG score recompute
  16. 2026-10-11 15:26 UTCEG score recompute
  17. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  18. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  19. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  20. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  21. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  22. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  23. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  24. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  25. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  26. 2026-10-01 06:40 UTCOSV refresh
  27. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  28. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  29. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  30. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  31. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  32. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  33. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  34. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  35. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  36. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  37. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  38. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  39. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  40. 2026-09-12 07:53 UTCOSV refresh
  41. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  42. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  43. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  44. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  45. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  46. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  47. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  48. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  49. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  50. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  51. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  52. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  53. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  54. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  55. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  56. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  57. 2026-08-24 13:02 UTCOSV refresh
  58. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  59. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  60. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  61. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  62. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  63. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  64. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  65. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  66. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  67. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  68. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  69. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  70. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  71. 2026-08-08 08:39 UTCEG score recompute
  72. 2026-08-08 08:39 UTCVendor advisory
  73. 2026-08-08 08:39 UTCGHSA enrichmentGHSA-4g8j-hwjq-h8fr · GitHub severity HIGH · GitHub CVSS 7.0

Frequently asked(5)

What is CVE-2025-40242?
CVE-2025-40242 is a high-severity vulnerability; its CVE record was published on December 4, 2025. In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix unlikely race in gdlm_put_lock In gdlm_put_lock(), there is a small window of time in which the DFL_UNMOUNT flag has been set but the lockspace hasn't been released, yet. In that window, dlm may still call gdlm_ast() and…
When was the CVE record for CVE-2025-40242 published?
The CVE record for CVE-2025-40242 was published on December 4, 2025. 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 October 19, 2026; the record at its source may have been updated since.
Is CVE-2025-40242 actively exploited?
CVE-2025-40242 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-40242?
CVE-2025-40242 has a CVSS base score of 7.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2025-40242?
A fix for CVE-2025-40242 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-40242 are linked in the Vendor Advisories panel on this page.

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