What’s Vulnerable › Vulnerabilities

CVE-2021-40944

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-06-28 · updated 2026-06-17
• Weakness: CWE-476

Description

In GPAC MP4Box 1.1.0, there is a Null pointer reference in the function gf_filter_pid_get_packet function in src/filter_core/filter_pid.c:5394, as demonstrated by GPAC. This can cause a denial of service (DOS).

Affected products

• GPAC: 1.1.0

References

• https://github.com/gpac/gpac/issues/1906
• https://www.debian.org/security/2023/dsa-5411
• https://github.com/gpac/gpac/issues/1906
• https://www.debian.org/security/2023/dsa-5411

Get alerted when CVE-2021-40944 or the next vulnerability affects your stack