CVE-2025-6140

spdlog pattern_formatter-inl.h scoped_padder resource consumption

CVE-2025-6140 is fixed in spdlog on 1 platform, first by DEBIAN-CVE-2025-6140, released June 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine

CVSS

3.3

Moderate

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0025

16th percentile

A vulnerability, which was classified as problematic, was found in spdlog up to 1.15.1. This affects the function scoped_padder in the library include/spdlog/pattern_formatter-inl.h. The manipulation leads to resource consumption. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. Upgrading to version 1.15.2 is able to address this issue. The identifier of the patch is 10320184df1eb4638e253a34b1eb44ce78954094. It is recommended to upgrade the affected component.

Where it's fixed

Product	Fixed in	Fix	Released
Linux
spdlog · Debian 13.5 (trixie)	1:1.15.2+ds-1	DEBIAN-CVE-2025-6140	Jun 16, 2025
spdlog · Debian 14	1:1.15.2+ds-1	DEBIAN-CVE-2025-6140	Jun 16, 2025

Details

Published
June 16, 2025
Weakness
Uncontrolled Resource Consumption
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-6140

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