Out-of-bounds Read Affecting libpcap package, versions [0,]


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.18% (7th percentile)

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  • Snyk IDSNYK-CONAN-LIBPCAP-20079123
  • published24 Sept 2026
  • disclosed5 Sept 2026
  • creditUnknown

Introduced: 5 Sep 2026

NewCVE-2026-18238  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the rpcap client process when handling RPCAP_MSG_PACKET messages from a server. An attacker can access sensitive information from process memory by sending specially crafted messages from a malicious server.

CVSS Base Scores

version 4.0
version 3.1