What’s Vulnerable › Vulnerabilities

CVE-2017-7866

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-04-14 · updated 2026-06-17
• Weakness: CWE-787

Description

FFmpeg before 2017-01-23 has an out-of-bounds write caused by a stack-based buffer overflow related to the decode_zbuf function in libavcodec/pngdec.c.

Affected products

• FFmpeg: through 2.8.9

References

• http://www.securityfocus.com/bid/97664
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=444
• https://github.com/FFmpeg/FFmpeg/commit/e371f031b942d73e02c090170975561fabd5c264
• http://www.securityfocus.com/bid/97664
• https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=444
• https://github.com/FFmpeg/FFmpeg/commit/e371f031b942d73e02c090170975561fabd5c264

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