What’s Vulnerable › Vulnerabilities

CVE-2021-40564

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-12 · updated 2026-06-17
• Weakness: CWE-476

Description

A Segmentation fault caused by null pointer dereference vulnerability eists in Gpac through 1.0.2 via the avc_parse_slice function in av_parsers.c when using mp4box, which causes a denial of service.

Affected products

• GPAC: through 1.0.2

References

• https://github.com/gpac/gpac/commit/cf6771c857eb9a290e2c19ddacfdd3ed98b27618
• https://github.com/gpac/gpac/issues/1898
• https://www.debian.org/security/2023/dsa-5411
• https://github.com/gpac/gpac/commit/cf6771c857eb9a290e2c19ddacfdd3ed98b27618
• https://github.com/gpac/gpac/issues/1898
• https://www.debian.org/security/2023/dsa-5411

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