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Fencer Vulns
medium 5.5

CVE-2023-39136 json

An unhandled edge case in the component _sanitizedPath of ZipArchive v2.5.4 allows attackers to cause a Denial of Service (DoS) via a craft…

published 2023-08-30 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-42881

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

An unhandled edge case in the component _sanitizedPath of ZipArchive v2.5.4 allows attackers to cause a Denial of Service (DoS) via a crafted zip file.

Patch / fix

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/ZipArchive/ZipArchive/issues/680 referenced PoC, tagged "exploit" by a source, unverified
  • blog.ostorlab.co https://blog.ostorlab.co/zip-packages-exploitation.html referenced PoC, tagged "exploit" by a source, unverified
  • ostorlab.co https://ostorlab.co/vulndb/advisory/OVE-2023-2 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

Weakness
  • CWE-703 Improper Check or Handling of Exceptional Conditions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.