CVE-2025-15079

MEDIUMNVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

Score 5.3 from GitHub Security Advisory published 2026-01-08. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Elevated

Also known asEUVD-2026-1575 (ENISA EUVD) · GHSA-7q9p-cx8r-rh2q (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 5.3Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts *not present* in the specified file if they were added as recognized in the libssh *global* known_hosts file.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
40
EG Risk 40/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
0.5%
EPSS %ILE
46th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-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 2026-10-25). 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: 60 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 public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

January 8, 2026

Last Modified

October 14, 2026

Advisory Details (4)

Auto-updated Aug 9, 2026
Patch available.
Web page

oss-security - [ADVISORY] curl CVE-2025-15079: libssh global knownhost override

http://www.openwall.com/lists/oss-security/2026/01/07/6
Web page

HackerOne

https://hackerone.com/reports/3477116
Web page
https://curl.se/docs/CVE-2025-15079.json
Web page

curl - libssh global known_hosts override - CVE-2025-15079

https://curl.se/docs/CVE-2025-15079.html

Vendor Advisories for CVE-2025-15079(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibcurl4t64 (8.5.0-2ubuntu10.7) @ noble2026-10-14ubuntu
ubuntulibcurl4-openssl-dev (7.47.0-1ubuntu2.19+esm15) @ xenial2026-10-14ubuntu
redhatcurl-main-8.19.0-3.hum12026-04-07redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.74.0-1.3 ... 8.9.1-2~bpo12+1 (219 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
curl7.88.1-10 ... 8.9.1-2~bpo12+1 (180 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
curl8.14.1-2 ... 8.22.0~rc3-1+exp1 (80 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
curl8.14.1-2 ... 8.18.0~rc2-1 (27 versions)
  • every version up to 8.18.0~rc3-1: fixed in 8.18.0~rc3-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 8× in last 7d / 40× 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 97 of 210 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. 3 repeat rows among the latest 100 are merged into the row they repeat. The 113 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  2. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.5% · 46th percentile
  3. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  5. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  6. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  7. 2026-10-27 13:25 UTCOSV refresh
  8. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  9. 2026-10-25 16:45 UTCEG score recompute
  10. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  11. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  12. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  13. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  14. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  15. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  16. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  17. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-18 05:48 UTCEG score recompute
  19. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  22. 2026-10-14 17:36 UTCEG score recompute
  23. 2026-10-14 17:36 UTCVendor advisory
  24. 2026-10-14 17:36 UTCGHSA enrichmentGHSA-7q9p-cx8r-rh2q · GitHub CVSS 5.3
  25. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
Show 72 more
  1. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  2. 2026-10-12 17:22 UTCEG score recompute
  3. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  4. 2026-10-11 20:53 UTCEG score recompute
  5. 2026-10-11 19:03 UTCEG score recompute
  6. 2026-10-11 15:44 UTCEG score recompute
  7. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  8. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  9. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  10. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  12. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  13. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  14. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  15. 2026-10-04 22:48 UTCOSV refresh
  16. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  17. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  19. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  20. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  23. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  24. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  25. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  26. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  27. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  28. 2026-09-15 07:25 UTCVendor advisory
  29. 2026-09-15 07:25 UTCGHSA enrichmentGHSA-7q9p-cx8r-rh2q · GitHub CVSS 5.3
  30. 2026-09-15 06:40 UTCEG score recompute
  31. 2026-09-15 06:40 UTCVendor advisory
  32. 2026-09-15 06:40 UTCGHSA enrichmentGHSA-7q9p-cx8r-rh2q · GitHub CVSS 5.3
  33. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  34. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  35. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  36. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  37. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  38. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  39. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  40. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  41. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  42. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  43. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  44. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  45. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  46. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  47. 2026-08-31 09:46 UTCOSV refresh
  48. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  49. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  50. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  51. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  52. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  53. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  54. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  55. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  56. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  57. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  58. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  59. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  60. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  61. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  62. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  63. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  64. 2026-08-14 15:34 UTCEG score recompute
  65. 2026-08-14 15:34 UTCVendor advisory
  66. 2026-08-14 15:34 UTCGHSA enrichmentGHSA-7q9p-cx8r-rh2q · GitHub CVSS 5.3
  67. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  68. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  69. 2026-08-11 13:41 UTCEPSS rescoreEPSS 0.5% · 38th percentile
  70. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.5% · 37th percentile
  71. 2026-08-09 21:10 UTCEG score recompute
  72. 2026-08-09 21:10 UTCVendor advisory

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

Frequently asked(5)

What is CVE-2025-15079?
CVE-2025-15079 is a medium-severity vulnerability; its CVE record was published on January 8, 2026. When doing SSH-based transfers using either SCP or SFTP, and setting the known_hosts file, libcurl could still mistakenly accept connecting to hosts not present in the specified file if they were added as recognized in the libssh global known_hosts file.
When was the CVE record for CVE-2025-15079 published?
The CVE record for CVE-2025-15079 was published on January 8, 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 October 14, 2026; the record at its source may have been updated since.
Is CVE-2025-15079 actively exploited?
CVE-2025-15079 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-15079?
CVE-2025-15079 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2025-15079?
A fix for CVE-2025-15079 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-15079 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-15079

Explore →

Is Your Infrastructure Affected by CVE-2025-15079?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs