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 (1:5.3.2-1ubuntu1.1) @ resolute2026-08-30ubuntu
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 33× in last 7d / 169× 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 223 total refreshes for this CVE.

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

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 88.5% 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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