CVE-2026-38346

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 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

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An integer overflow in the yuv2planeX_8_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
26%
KEV
Not listed

Published

August 27, 2026

Last Modified

September 9, 2026

Advisory Details (1)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

#21584 - [Bug Report] Signed Integer Overflow @ libswscale/output.c:477:17 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21584

Vendor Advisories for CVE-2026-38346(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:5.1.3-1 ... 7:5.1.8-0+deb12u1 (7 versions)7:5.1.9-0+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1, 7:7.1.2-0+deb13u1, 7:7.1.2-1, 7:7.1.3-0+deb13u1, 7:7.1.3-17:7.1.4-0+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:8.0.1-3 (8 versions)7:8.1-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 27× in last 7d / 98× 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.

  1. 2026-09-21 01:55 UTCEG score recompute
  2. 2026-09-21 01:55 UTCGHSA enrichment
  3. 2026-09-20 20:15 UTCEPSS rescore
  4. 2026-09-20 14:04 UTCGHSA enrichment
  5. 2026-09-20 02:14 UTCEG score recompute
  6. 2026-09-20 02:14 UTCGHSA enrichment
  7. 2026-09-19 14:24 UTCGHSA enrichment
  8. 2026-09-19 02:34 UTCEG score recompute
  9. 2026-09-19 02:34 UTCGHSA enrichment
  10. 2026-09-18 19:28 UTCEPSS rescore
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 14:43 UTCGHSA enrichment
  13. 2026-09-18 02:53 UTCEG score recompute
  14. 2026-09-18 02:53 UTCGHSA enrichment
  15. 2026-09-17 19:30 UTCEPSS rescore
  16. 2026-09-17 15:03 UTCGHSA enrichment
  17. 2026-09-17 03:13 UTCGHSA enrichment
  18. 2026-09-16 14:31 UTCEG score recompute
  19. 2026-09-16 14:31 UTCGHSA enrichment
  20. 2026-09-16 14:08 UTCEPSS rescore
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-16 02:41 UTCGHSA enrichment
  23. 2026-09-15 14:51 UTCEG score recompute
  24. 2026-09-15 14:51 UTCGHSA enrichment
  25. 2026-09-15 03:11 UTCEPSS rescore
Show 73 more
  1. 2026-09-15 03:00 UTCGHSA enrichment
  2. 2026-09-14 15:10 UTCGHSA enrichment
  3. 2026-09-14 03:20 UTCEG score recompute
  4. 2026-09-14 03:20 UTCGHSA enrichment
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-13 15:30 UTCGHSA enrichment
  7. 2026-09-13 03:40 UTCGHSA enrichment
  8. 2026-09-12 15:50 UTCEG score recompute
  9. 2026-09-12 15:50 UTCGHSA enrichment
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-12 04:00 UTCGHSA enrichment
  12. 2026-09-11 16:09 UTCEG score recompute
  13. 2026-09-11 16:09 UTCGHSA enrichment
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 09:37 UTCEPSS rescore
  16. 2026-09-11 04:09 UTCGHSA enrichment
  17. 2026-09-10 16:19 UTCEG score recompute
  18. 2026-09-10 16:19 UTCGHSA enrichment
  19. 2026-09-10 09:34 UTCEPSS rescore
  20. 2026-09-10 04:09 UTCGHSA enrichment
  21. 2026-09-09 16:10 UTCGHSA enrichment
  22. 2026-09-09 12:45 UTCGHSA enrichment
  23. 2026-09-09 00:46 UTCEG score recompute
  24. 2026-09-09 00:46 UTCGHSA enrichment
  25. 2026-09-08 22:00 UTCEPSS rescore
  26. 2026-09-08 07:46 UTCGHSA enrichment
  27. 2026-09-07 19:55 UTCEG score recompute
  28. 2026-09-07 19:55 UTCGHSA enrichment
  29. 2026-09-07 16:01 UTCEPSS rescore
  30. 2026-09-07 08:05 UTCGHSA enrichment
  31. 2026-09-06 19:57 UTCEG score recompute
  32. 2026-09-06 19:57 UTCGHSA enrichment
  33. 2026-09-06 13:47 UTCEPSS rescore
  34. 2026-09-06 08:07 UTCGHSA enrichment
  35. 2026-09-05 20:16 UTCGHSA enrichment
  36. 2026-09-05 08:26 UTCGHSA enrichment
  37. 2026-09-04 20:35 UTCEG score recompute
  38. 2026-09-04 20:35 UTCGHSA enrichment
  39. 2026-09-04 08:04 UTCEG score recompute
  40. 2026-09-04 08:04 UTCGHSA enrichment
  41. 2026-09-04 05:06 UTCEPSS rescore
  42. 2026-09-03 20:13 UTCGHSA enrichment
  43. 2026-09-03 08:22 UTCGHSA enrichment
  44. 2026-09-02 20:32 UTCEG score recompute
  45. 2026-09-02 20:32 UTCGHSA enrichment
  46. 2026-09-02 14:12 UTCEPSS rescore
  47. 2026-09-02 07:33 UTCGHSA enrichment
  48. 2026-09-01 19:38 UTCEG score recompute
  49. 2026-09-01 19:38 UTCGHSA enrichment
  50. 2026-09-01 13:53 UTCEPSS rescore
  51. 2026-09-01 07:37 UTCEG score recompute
  52. 2026-09-01 07:36 UTCGHSA enrichment
  53. 2026-09-01 04:39 UTCEPSS rescore
  54. 2026-08-31 19:45 UTCGHSA enrichment
  55. 2026-08-31 07:55 UTCGHSA enrichment
  56. 2026-08-30 20:05 UTCEG score recompute
  57. 2026-08-30 20:05 UTCGHSA enrichment
  58. 2026-08-30 19:17 UTCEPSS rescore
  59. 2026-08-30 08:14 UTCEG score recompute
  60. 2026-08-30 08:14 UTCGHSA enrichment
  61. 2026-08-30 01:22 UTCEPSS rescore
  62. 2026-08-29 20:24 UTCGHSA enrichment
  63. 2026-08-29 08:34 UTCEG score recompute
  64. 2026-08-29 08:34 UTCGHSA enrichment
  65. 2026-08-28 21:41 UTCEPSS rescore
  66. 2026-08-28 20:43 UTCGHSA enrichment
  67. 2026-08-28 19:42 UTCEG score recompute▲ 7.50
  68. 2026-08-28 19:42 UTCGHSA enrichment
  69. 2026-08-28 19:36 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  70. 2026-08-28 00:32 UTCGHSA enrichment
  71. 2026-08-28 00:26 UTCNVD update
  72. 2026-08-27 23:24 UTCEG score recompute
  73. 2026-08-27 23:23 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-38346?
CVE-2026-38346 is a high vulnerability published on August 27, 2026. An integer overflow in the yuv2planeX8c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.
When was CVE-2026-38346 disclosed?
CVE-2026-38346 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38346 actively exploited?
CVE-2026-38346 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 74.3% of all scored CVEs.
What is the CVSS score of CVE-2026-38346?
CVE-2026-38346 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38346?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38346, 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.

Dependency Blast Radius

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