CVE-2016-9296

7.5 highEPSS 7.0%

A null pointer dereference bug affects the 16.02 and many old versions of p7zip. A lack of null pointer check for the variable folders.PackPositions in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications, will cause a crash and a denial of service when decoding malformed 7z files.

Severity

CVSS 3.0

7.5 high

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 7.0% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2016-11-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

7-zip:p7zip

References

http://www.securityfocus.com/bid/94294
https://github.com/yangke/7zip-null-pointer-dereference
https://sourceforge.net/p/p7zip/bugs/185/
https://sourceforge.net/p/p7zip/discussion/383043/thread/648d34db/
http://www.securityfocus.com/bid/94294

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