CVE-2025-6140

Public Exploit
spdlog pattern_formatter-inl.h scoped_padder resource consumption

Description

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.

Category

4.8
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.01%
Third-Party Advisory vuldb.com Third-Party Advisory vuldb.com
Affected: n/a spdlog
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.312609 technical description third party advisory vdb entry
https://vuldb.com/?ctiid.312609 permissions required vdb entry signature
https://vuldb.com/?submit.592999 third party advisory vdb entry
https://github.com/gabime/spdlog/issues/3360 issue tracking exploit
https://github.com/gabime/spdlog/issues/3360#issuecomment-2729579422 issue tracking exploit
https://github.com/gabime/spdlog/commit/10320184df1eb4638e253a34b1eb44ce78954094 patch
https://github.com/gabime/spdlog/releases/tag/v1.15.2 patch release notes

Frequently Asked Questions

What is the severity of CVE-2025-6140?
CVE-2025-6140 has been scored as a medium severity vulnerability.
How to fix CVE-2025-6140?
To fix CVE-2025-6140, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-6140 being actively exploited in the wild?
It is possible that CVE-2025-6140 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-6140?
CVE-2025-6140 affects n/a spdlog.
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