A NULL pointer dereference in the gf_ac4_pres_b_4_back_channels_present function (/media_tools/av_parsers.c) of GPAC Project/MP4Box before 26.02.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted AC4 file.
CVE-2025-60483
Score 5.5 from GitHub Security Advisory published 2026-06-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: 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 computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 4%
- KEV
- Not listed
Published
June 1, 2026
Last Modified
July 22, 2026
Advisory Details (5)
Auto-updated Jun 15, 2026oss-security - CVE-2025-60483: NULL Pointer Dereference in GPAC/MP4Box via gf_ac4_pres_b_4_back_channels_present on crafted AC-4 stream
http://www.openwall.com/lists/oss-security/2026/06/01/9sigdevel: "Security Advisory: CVE-2025-60483 - NULL Pointer …" - Infosec Exchange
https://infosec.exchange/@sigdevel/116659111520602254pocs/res/gpac/MP4Box/49/README.md at main · sigdevel/pocs · GitHub
https://github.com/sigdevel/pocs/blob/main/res/gpac/MP4Box/49/README.md[security] media_tools/av_parsers.c:15703 null-pointer-dereference in gf_ac4_pres_b_4_back_channels_present · Issue #3302 · gpac/gpac · GitHub
https://github.com/gpac/gpac/issues/3302commit 13eb5b76560a (gpac/gpac)
Patch available: gpac/gpac v26.02.0 (contains commit 13eb5b76560a)
https://github.com/gpac/gpac/commit/13eb5b76560aaf7813b865a2ad433258478e2695Vendor Advisories for CVE-2025-60483(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 47× 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 120 total refreshes for this CVE.
- 2026-07-31 05:48 UTCEG score recompute
- 2026-07-31 05:48 UTCGHSA enrichment
- 2026-07-30 16:27 UTCEPSS rescore
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- 2026-07-16 01:41 UTCGHSA enrichment
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- 2026-06-10 03:58 UTCGHSA enrichment
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Frequently asked(5)
What is CVE-2025-60483?
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Dependency Blast Radius
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