7.5

CVE-2025-47947: owasp-modsecurity modsecurity

CVSS: 7.5v3.1HighAnalyzed
AliasesRHSA-2025:8605RHSA-2025:8626RHSA-2025:8627
Published 21-05-2025Last modified 22-05-2025
Open JSON

Vulnerability summary

CVE-2025-47947 is a high (CVSS 7.5) vulnerability in owasp-modsecurity modsecurity. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 8 · Related 5
DSA-5940-1MGASA-2025-0192OPENSUSE-SU-2025:15197-1RHSA-2025:13680SUSE-SU-2025:02028-1SUSE-SU-2025:02029-1

Timeline

  1. 21-05-2025
    PublishedVulnerability first disclosed.
  2. 22-05-2025
    Last modifiedVulnerability information updated.

Description

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Versions up to and including 2.9.8 are vulnerable to denial of service in one special case (in stable released versions): when the payload's content type is `application/json`, and there is at least one rule which does a `sanitiseMatchedBytes` action. A patch is available at pull request 3389 and expected to be part of version 2.9.9. No known workarounds are available.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.60% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.60%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Modsecurity

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Redhat5 products
  • mod_security< 0:2.9.2-9.el8_6.1 | < 0:2.9.2-8.el8_2.1 | < 0:2.9.2-9.el8_4.1 | < 0:2.9.6-1.el8_8.1 | < 0:2.9.6-2.el9_6 | < 0:2.9.6-2.el8_10 | < 0:2.9.6-1.el9_4.1 | < 0:2.9.3-12.el9_0.1 | < 0:2.9.6-1.el9_2.1
  • mod_security-debuginfo< 0:2.9.2-9.el8_6.1 | < 0:2.9.2-8.el8_2.1 | < 0:2.9.2-9.el8_4.1 | < 0:2.9.6-1.el8_8.1 | < 0:2.9.6-2.el9_6 | < 0:2.9.6-2.el8_10 | < 0:2.9.6-1.el9_4.1 | < 0:2.9.3-12.el9_0.1 | < 0:2.9.6-1.el9_2.1
  • mod_security-debugsource< 0:2.9.2-9.el8_6.1 | < 0:2.9.2-8.el8_2.1 | < 0:2.9.2-9.el8_4.1 | < 0:2.9.6-1.el8_8.1 | < 0:2.9.6-2.el9_6 | < 0:2.9.6-2.el8_10 | < 0:2.9.6-1.el9_4.1 | < 0:2.9.3-12.el9_0.1 | < 0:2.9.6-1.el9_2.1
  • mod_security-mlogc< 0:2.9.2-9.el8_6.1 | < 0:2.9.2-8.el8_2.1 | < 0:2.9.2-9.el8_4.1 | < 0:2.9.6-1.el8_8.1 | < 0:2.9.6-2.el9_6 | < 0:2.9.6-2.el8_10 | < 0:2.9.6-1.el9_4.1 | < 0:2.9.3-12.el9_0.1 | < 0:2.9.6-1.el9_2.1
  • mod_security-mlogc-debuginfo< 0:2.9.2-9.el8_6.1 | < 0:2.9.2-8.el8_2.1 | < 0:2.9.2-9.el8_4.1 | < 0:2.9.6-1.el8_8.1 | < 0:2.9.6-2.el9_6 | < 0:2.9.6-2.el8_10 | < 0:2.9.6-1.el9_4.1 | < 0:2.9.3-12.el9_0.1 | < 0:2.9.6-1.el9_2.1
Debian1 product
  • modsecurity-apache< 2.9.7-1+deb12u1 | < 2.9.9-1 | < 2.9.3-3+deb11u3
Owasp-modsecurity1 product
Trustwave1 product
Ubuntu1 product
  • modsecurity-apache< 2.7.7-2ubuntu0.1~esm2 | < 2.9.0-1ubuntu0.1~esm2 | < 2.9.2-1ubuntu0.1~esm2 | < 2.9.3-1ubuntu0.1+esm1 | < 2.9.5-1ubuntu0.1~esm2 | < 2.9.7-1ubuntu0.24.04.1~esm1

5 vendors · 9 products

References

29 links
Show all 29 references