EUVD-2026-12241Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
8DescriptionCVE.org
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.
AnalysisAI
Stack-based buffer overflow vulnerability in GPAC's MP4Box component, specifically in the swf_def_bits_jpeg function of src/scene_manager/swf_parse.c, affecting versions up to 2.5-DEV-rev2167. An authenticated attacker can exploit this remotely by manipulating the szName argument to cause a stack overflow, resulting in information disclosure, data modification, or denial of service. A public proof-of-concept exists, and a vendor patch is available; exploitation requires valid credentials (CVSS 6.3 with authenticated access requirement).
Technical ContextAI
GPAC is an open-source multimedia framework used for MP4 and media processing. The vulnerable component MP4Box is a utility for manipulating ISO Base Media Files (MP4, MOV, etc.) and also processes SWF (Shockwave Flash) files. The vulnerability exists in the swf_parse.c module's swf_def_bits_jpeg function, which handles JPEG bitmap definitions within SWF files. The root cause is CWE-121 (Stack-based Buffer Overflow), where insufficient bounds checking on the szName parameter allows an attacker to write beyond allocated stack buffer boundaries. This is typical of unsafe string handling in C-based media parsers. The SWF file format is the attack vector—a specially crafted SWF file embedded in or processed by MP4Box can trigger the overflow.
RemediationAI
Immediate patching is required: Apply commit 8961c74f87ae3fe2d3352e622f7730ca96d50cf1 from the GPAC repository (https://github.com/gpac/gpac/commit/8961c74f87ae3fe2d3352e622f7730ca96d50cf1). Users should update GPAC to a version incorporating this patch (likely 2.5 or later stable release when available). Interim mitigations: (1) Disable SWF file processing in MP4Box if not required; (2) Restrict MP4Box access to trusted input files only; (3) Run MP4Box with minimal privileges and in isolated environments; (4) Implement input validation/sanitization for SWF files before processing; (5) Monitor for suspicious MP4/SWF file processing attempts. Verify patch application by checking the git history or version string post-update.
Heap Buffer Overflow vulnerability in GPAC version 2.3-DEV-rev617-g671976fcc-master, allows attackers to execute arbitra
NULL Pointer Dereference in GitHub repository gpac/gpac prior to 2.2.2. Rated critical severity (CVSS 9.8), this vulnera
GPAC mp4box 2.1-DEV-revUNKNOWN-master has a use-after-free vulnerability in function gf_isom_dovi_config_get. Rated crit
Use After Free in GitHub repository gpac/gpac prior to v2.1.0-DEV. Rated critical severity (CVSS 9.8), this vulnerabilit
NULL Pointer Dereference in the "isomedia/track.c" module's "MergeTrack()" function of GPAC v0.5.2 allows attackers to e
An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. Rated critical severity (CVSS 9.8), this
An issue was discovered in MP4Box in GPAC 0.7.1. Rated critical severity (CVSS 9.8), this vulnerability is remotely expl
Out-of-bounds Read in GitHub repository gpac/gpac prior to 2.2.2. Rated critical severity (CVSS 9.1), this vulnerability
A vulnerability, which was classified as critical, has been found in GPAC 2.3-DEV-rev40-g3602a5ded.c. Rated high severit
A vulnerability, which was classified as problematic, was found in GPAC 2.1-DEV-rev490-g68064e101-master. Rated high sev
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Adv
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Adv
Same weakness CWE-121 – Stack-based Buffer Overflow
View allSame technique Stack Overflow
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External POC / Exploit Code
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