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TI-2016-07593 Aliases CVE-2016-9296GHSA-mqw8-2gg2-v87m

A null pointer dereference bug affects the 16.02 and many old versions of p7zip.

Priority MEDIUM 43CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

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.

Why it matters now

EPSS 0.07016 94th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:7-zip:p7zip:16.02:*:*:*:*:*:*:*16.02Vulnerable7-Zip
  • cpe:2.3:a:7-zip:p7zip:16.02:*:*:*:*:*:*:* Versions 16.02 Vulnerable ·7-Zip

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9296
  2. 2026-10-03 Alias added: GHSA-mqw8-2gg2-v87m

References

Exploit 1

Patch 1

Advisory 1

  • TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
  • TI-2022-23297 p7zip 16.02 was discovered to contain a heap-buffer-overflow vulnerability via the… CVSS 3.1HIGH 7.8
  • TI-2017-13187 Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip… CVSS 3.0HIGH 7.8
  • TI-2018-04365 Insufficient exception handling in the method NCompress::NRar3::CDecoder::Code of 7-Zip… CVSS 3.0HIGH 7.8
  • TI-2015-00935 p7zip 9.20.1 allows remote attackers to write to arbitrary files via a symlink attack in an archive. CVSS 2.0MEDIUM 5.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences