Out-of-bounds Write Affecting popt package, versions *


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-DEBIAN11-POPT-18520195
  • published5 Aug 2026
  • disclosed4 Aug 2026

Introduced: 4 Aug 2026

CVE-2026-18739  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Debian:11 popt.

NVD Description

Note: Versions mentioned in the description apply only to the upstream popt package and not the popt package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

A flaw was found in popt, a command-line option parsing library. An off-by-one error in the poptStuffArgs function, when repeatedly called by a host application or through deep alias nesting, can lead to corruption of internal program data. This corruption could potentially enable a local attacker to execute arbitrary code if the host application then unsafely processes the altered data.

CVSS Base Scores

version 3.1