What’s Vulnerable › Vulnerabilities

CVE-2021-40576

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-13 · updated 2026-06-17
• Weakness: CWE-476

Description

The binary MP4Box in Gpac 1.0.1 has a null pointer dereference vulnerability in the gf_isom_get_payt_count function in hint_track.c, which allows attackers to cause a denial of service.

Affected products

• GPAC: 1.0.1

References

• https://github.com/gpac/gpac/commit/ad18ece95fa064efc0995c4ab2c985f77fb166ec
• https://github.com/gpac/gpac/issues/1904
• https://www.debian.org/security/2023/dsa-5411
• https://github.com/gpac/gpac/commit/ad18ece95fa064efc0995c4ab2c985f77fb166ec
• https://github.com/gpac/gpac/issues/1904
• https://www.debian.org/security/2023/dsa-5411

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