CVE-2026-19499 Affecting glibc package, versions <2.38-150600.14.58.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.3% (20th percentile)

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  • Snyk IDSNYK-SLES156-GLIBC-19906034
  • published18 Sept 2026
  • disclosed17 Sept 2026

Introduced: 17 Sep 2026

NewCVE-2026-19499  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 glibc to version 2.38-150600.14.58.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied output buffer when a conversion uses right-justified width padding.

Exploitation requires an application code path that calls strfmon or strfmon_l with right-justified width padding into a destination buffer that is large enough for the padding to succeed but too small for the internal memmove call. The field width or format may be attacker-influenced or a fixed susceptible pattern in the caller.

At the time of publication, no network-facing application impact is known.

CVSS Base Scores

version 3.1