What’s Vulnerable › Vulnerabilities

CVE-2023-6603: Ffmpeg: null pointer dereference in ffmpeg hls parsing

• Severity: high (CVSS 7.5 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: 2024-12-31 · updated 2026-06-17
• Weakness: CWE-476

Description

A flaw was found in FFmpeg's HLS playlist parsing. This vulnerability allows a denial of service via a maliciously crafted HLS playlist that triggers a null pointer dereference during initialization.

Affected products

• FFmpeg: from 2.0 through 6.0

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2334335
• https://bugzilla.redhat.com/show_bug.cgi?id=2334335

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