Cyber Resilience

CVE-2023-45853

Critical

Published: 14 October 2023

Published
14 October 2023
Modified
20 December 2024
KEV Added
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Patch
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CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0140 80.8th percentile
Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-45853 is a critical-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Zlib Zlib. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 19.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

MiniZip in zlib through 1.3 has an integer overflow and resultant heap-based buffer overflow in zipOpenNewFileInZip4_64 via a long filename, comment, or extra field. NOTE: MiniZip is not a supported part of the zlib product. NOTE: pyminizip through 0.2.6 is…

more

also vulnerable because it bundles an affected zlib version, and exposes the applicable MiniZip code through its compress API.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

zlib
zlib
≤ 1.3.1
smihica
pyminizip
≤ 0.2.6

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References