What’s Vulnerable › Vulnerabilities

CVE-2017-9991

• Severity: high (CVSS 7.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-06-28 · updated 2026-06-17
• Weakness: CWE-119

Description

Heap-based buffer overflow in the xwd_decode_frame function in libavcodec/xwddec.c in FFmpeg before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file.

Affected products

• FFmpeg: through 2.8.11; 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5 (+16)

References

• http://www.securityfocus.com/bid/99316
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1399
• https://github.com/FFmpeg/FFmpeg/commit/441026fcb13ac23aa10edc312bdacb6445a0ad06
• http://www.securityfocus.com/bid/99316
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1399
• https://github.com/FFmpeg/FFmpeg/commit/441026fcb13ac23aa10edc312bdacb6445a0ad06

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