Read the docs
TI-2017-12415 Aliases CVE-2017-16869GHSA-3j3j-cj56-29p8

p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid…

Priority LOW 36CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

p_mach.cpp in UPX 3.94 allows remote attackers to cause a denial of service (invalid memory access and application crash) or possibly have unspecified other impact via a crafted Mach-O file, related to canPack and unpack functions. NOTE: the vendor has stated "there is no security implication whatsoever.

Why it matters now

EPSS 0.01046 64th percentileScored 2026-11-07
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:upx:upx:3.94:*:*:*:*:*:*:*3.94VulnerableUpx
  • cpe:2.3:a:upx:upx:3.94:*:*:*:*:*:*:* Versions 3.94 Vulnerable ·Upx

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-16869
  2. 2026-10-03 Alias added: GHSA-3j3j-cj56-29p8

References

See all 34 →

Sources