CVE-2026-4185

MEDIUMNVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory published 2026-03-16. NVD baseline CVSS 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swf_def_bits_jpeg of the file src/scene_manager/swf_parse.c of the component MP4Box. The manipulation of the argument szName results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. The patch is identified as 8961c74f87ae3fe2d3352e622f7730ca96d50cf1. A patch should be applied to remediate this issue.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

March 16, 2026

Last Modified

June 17, 2026

Advisory Details (4)

Auto-updated Aug 4, 2026
Patch available. Sources: github_commit.
generic

Stack-buffer-overflow in swf_def_bits_jpeg at scene_manager/swf_parse.c:2120 · Issue #3436 · gpac/gpac · GitHub

https://github.com/gpac/gpac/issues/3436
github_commit Patch Available

commit 8961c74f87ae (gpac/gpac)

Patch available: gpac/gpac v26.02.0 (contains commit 8961c74f87ae)

https://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1
generic

GitHub - gpac/gpac: GPAC Ultramedia OSS for Video Streaming & Next-Gen Multimedia Transcoding, Packaging & Delivery · GitHub

https://github.com/gpac/gpac/
generic

test_pocs/gpac/test.swf at main · PeterXukt/test_pocs · GitHub

https://github.com/PeterXukt/test_pocs/blob/main/gpac/test.swf

Affected Packages

(1 across 1 ecosystem)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
gpac1.0.1+dfsg1-4 ... 2.2.1+dfsg1-3.1~exp1 (13 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 4× in last 7d / 22× 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 163 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-4185?
CVE-2026-4185 is a medium vulnerability published on March 16, 2026. A vulnerability was found in GPAC up to 2.5-DEV-rev2167-gcc9d617c0-master. This vulnerability affects the function swfdefbitsjpeg of the file src/scenemanager/swf_parse.c of the component MP4Box. The manipulation of the argument szName results in stack-based buffer overflow. It is possible to…
When was CVE-2026-4185 disclosed?
CVE-2026-4185 was first published in the National Vulnerability Database on March 16, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-4185 actively exploited?
CVE-2026-4185 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 83.0% of all scored CVEs.
What is the CVSS score of CVE-2026-4185?
CVE-2026-4185 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-4185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-4185, 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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