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: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

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
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 6, 2026

Last Modified

September 1, 2026

Advisory Details (4)

Auto-updated Aug 6, 2026
Patch available.
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 / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibswscale4 (7:3.4.11-0ubuntu0.1+esm14) @ bionic2026-10-04ubuntu
ubuntulibswscale9 (7:8.0.1-3ubuntu2+esm3) @ resolute2026-10-04ubuntu

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
ffmpeg7:4.3.2-0+deb11u2 ... 7:9.0-1 (92 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
ffmpeg7:5.1.3-1 ... 7:9.0.2-1 (60 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
ffmpeg7:7.1.1-1 ... 7:9.0.2-1 (24 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
ffmpeg7:7.1.1-1 ... 7:9.0.1-1 (19 versions)
  • every version up to 7:9.0.2-1: fixed in 7:9.0.2-1
—

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 25× in last 7d / 131× 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 258 total refreshes for this CVE.

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

Related CVEs(same product + 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 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 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70632?
CVE-2026-70632 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70632?
A fix for CVE-2026-70632 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-70632 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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