CVE-2026-70632

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

August 6, 2026

Last Modified

September 1, 2026

Advisory Details (4)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

avcodec/cfhd: reject transform-2 output wider than the plane · 16b2049d4d - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/16b2049d4d5222db6cd7c031409058571c94f6a9
generic

avcodec/cfhd: reject transform-2 output wider than the plane · db05df9d13 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/db05df9d135fb56a4babb836d5e9f5c1d984e087
generic

avcodec/cfhd: add 3d transform support · 1006a21512 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1006a2151236f9235bf02822f263b3fb0532111e
generic

#23898 - avcodec/cfhd: reject transform-2 output wider than the plane - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23898

Vendor Advisories for CVE-2026-70632(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibswscale-ffmpeg3 (7:2.8.17-0ubuntu0.1+esm16) @ xenial2026-09-20ubuntu
ubuntulibswscale9 (7:8.0.1-3ubuntu2+esm3) @ resolute2026-09-20ubuntu

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
ffmpeg7:4.3.2-0+deb11u2 ... 7:9.0-1 (92 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:5.1.3-1 ... 7:9.0.1-1 (59 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:9.0.1-1 (23 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:9.0.1-1 (19 versions)——

Weakness Classification(1)

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

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 34× in last 7d / 137× 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 200 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-70632?
CVE-2026-70632 is a high vulnerability published on August 6, 2026. FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhddecode() function fails to…
When was CVE-2026-70632 disclosed?
CVE-2026-70632 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70632 actively exploited?
CVE-2026-70632 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 89.5% of all scored CVEs.
What is the CVSS score of CVE-2026-70632?
CVE-2026-70632 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-70632?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70632, 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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