Cyber Resilience

CVE-2023-2603

HighPublic PoC

Published: 06 June 2023

Published
06 June 2023
Modified
02 December 2025
KEV Added
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Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0112 78.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-2603 is a high-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Redhat Enterprise Linux. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 21.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

A vulnerability was found in libcap. This issue occurs in the _libcap_strdup() function and can lead to an integer overflow if the input string is close to 4GiB.

CWE(s)
CWE-190

Related Threats

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

Affected Assets

libcap project
libcap
≤ 2.69
redhat
enterprise linux
8.0, 9.0
fedoraproject
fedora
37, 38
debian
debian linux
11.0

Mitigating Controls

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

References