CVE-2026-40467

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory published 2026-07-13. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

July 13, 2026

Last Modified

July 14, 2026

Advisory Details (2)

Auto-updated Jul 13, 2026
No patch confirmed yet.
generic

Small memory management fix in io.c. - gawk.git - gawk

https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=a2d18c74109e41bec29a23098eba2e00057286d8
generic

Vulnerabilities in GNU gawk software | CERT Polska

https://cert.pl/en/posts/2026/07/CVE-2026-40467

Vendor Advisories for CVE-2026-40467(4)

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 / EcosystemFixed in / PatchReleasedSource
ubuntugawk (1:5.1.0-1ubuntu0.2) @ jammy2026-09-18ubuntu
redhatgawk-main-5.4.1-1.hum12026-08-03redhat
redhatgawk-main-5.4.0-3.1.hum12026-07-15redhat

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 rangeFixed inDependents
gawk1:5.1.0-1, 1:5.2.1-1, 1:5.2.1-2, 1:5.3.2-1——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gawk1:5.2.1-2, 1:5.3.2-1——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gawk1:5.2.1-2, 1:5.3.2-1——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gawk1:5.2.1-2, 1:5.3.2-1——

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 12× in last 7d / 86× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 270 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-40467?
CVE-2026-40467 is a high vulnerability published on July 13, 2026. Use After Free vulnerability has been found in "io.c" program file of gawk (dogetlineredir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.
When was CVE-2026-40467 disclosed?
CVE-2026-40467 was first published in the National Vulnerability Database on July 13, 2026, with the most recent update on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40467 actively exploited?
CVE-2026-40467 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.0% of all scored CVEs.
What is the CVSS score of CVE-2026-40467?
CVE-2026-40467 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-40467?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40467, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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