CVE-2021-35368: debian debian_linux
Vulnerability summary
CVE-2021-35368 is a critical (CVSS 9.8) vulnerability in debian debian_linux. EPSS estimates a 2.73% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities. 3 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 05-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
OWASP ModSecurity Core Rule Set 3.1.x before 3.1.2, 3.2.x before 3.2.1, and 3.3.x before 3.3.2 is affected by a Request Body Bypass via a trailing pathname.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.73%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.73% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
3 foundExploit Reference (portswigger.net)
Maturity: unknown
Exploit Reference (portswigger.net)
Maturity: unknown
Exploit Reference (coreruleset.org)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Debian2 products
- modsecurity-crs< 3.3.2-1
- debian_linuxEOL10.0
Fedoraproject1 product
- fedoraEOL36 | 37
Owasp1 product
- owasp_modsecurity_core_rule_set≥ 3.1.0, < 3.1.2 | ≥ 3.2.0, < 3.2.1 | ≥ 3.3.0, < 3.3.2
Ubuntu1 product
- modsecurity-crsAll versions (No fix recorded)
4 vendors · 5 products
References
11 links- owasp.org/www-project-modsecurity-core-rule-set/Vendor Advisory
- coreruleset.org/20210630/cve-2021-35368-crs-request-body-bypass/REPORTExploitRelease NotesVendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- security.gentoo.org/glsa/202305-25Vendor Advisory