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Vulnerabilities

Vulnerability · CVE-2025-6140

A vulnerability, which was classified as problematic, was found in spdlog up to 1.15.1.

Published Jun 16, 2025 · catalog updated Jun 17, 2025 · A vulnerability, which was

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-6140. EPSS is 0.25%. Act only if a listed version of A vulnerability, which was is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A vulnerability, which was).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium4.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.25%
Remediation
Vendor / distro source
Affected products
vendor n/a spdlog 1.15.1

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor n/a spdlog 1.15.11.15.1

How to fix CVE-2025-6140

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-6140. EPSS is 0.25%. Act only if a listed version of A vulnerability, which was is installed.

Which versions are affected?

Compare what you have installed with n/a spdlog 1.15.1 1.15.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.25%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 16, 2025 · EUVD

    Detected

    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

  2. Jun 17, 2025 · EUVD

    Updated

    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

Sources

  • CVE.orgVulnerability recordCVE-2025-6140

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-6140

    30-day exploitation probability 0.25%

    first.org
  • EUVDVulnerability recordEUVD-2025-18431

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026