High severity7.8NVD Advisory· Published Aug 11, 2021· Updated Jun 17, 2026

CVE-2021-32439

Description

Buffer overflow in the stbl_AppendSize function in MP4Box in GPAC 1.0.1 allows attackers to cause a denial of service or execute arbitrary code via a crafted file.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Gpac/Gpac2 versions
cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:gpac:gpac:1.0.1:*:*:*:*:*:*:*
- (no CPE)range: <1.0.1
GPAC/GPACdescription
Gpac/MP4Boxllm-fuzzy
Range: <1.0.1

Patches

Vulnerability mechanics

References

github.com/gpac/gpac/commit/77ed81c069e10b3861d88f72e1c6be1277ee7eaenvdPatchThird Party Advisory
github.com/gpac/gpac/issues/1774nvdExploitIssue TrackingThird Party Advisory

News mentions

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cvss	0.507
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000