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CVE-2025-6140

14
FAUCET Score

CVE-2025-6140 is a problematic resource consumption vulnerability affecting spdlog versions up to 1.15.1, specifically within the scoped_padder function. With a CVSS score of 3.3 (LOW), this vulnerability can be exploited locally with low attack complexity, potentially leading to denial of service. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there Metasploit, Nuclei, or ExploitDB modules available, and community discussion is minimal. Upgrading to spdlog version 1.15.2 is recommended to remediate this issue.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.15.2CPE matchmatch criteria
cpe:2.3:a:gabime:spdlog:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 48th percentile among its peer group of 1,511 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19629-17084Fixed in: 1.9.8-2
microsoftpatch availablevia msrc
Product: azl3 doxygen 1.9.8-2 on Azure Linux 3.0Fixed in: 1.9.8-2
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: rhcos
redhatvendor investigatingvia redhat_api
Product: Red Hat OpenShift Container Platform 4Fixed in: spdlog

Vendor Advisories (2)

redhatCVE-2025-6140Low

spdlog: spdlog resource exhaustion

Jun 16, 2025
microsoft2025-Jun/CVE-2025-6140Moderate

spdlog pattern_formatter-inl.h scoped_padder resource consumption

Jun 10, 2025

References

github.com / gabime/spdlog/commit/10320184df1eb4638e253a34b1eb44ce78954094
Patch
github.com / gabime/spdlog/issues/3360
ExploitIssue Tracking
github.com / gabime/spdlog/issues/3360
ExploitIssue Tracking
github.com / gabime/spdlog/releases/tag/v1.15.2
Release Notes
vuldb.com
Permissions RequiredVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry