Is CVE-2021-35368 in the CISA KEV catalog?

No. CVE-2021-35368 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-35368?

CVE-2021-35368 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-35368?

CVE-2021-35368 has an EPSS score of 2.54% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-35368?

Upgrade modsecurity-crs on debian 11 to 3.3.0-1+deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-35368

CRITICALEPSS 83th pctl

9.8

CVSS v3

NVD

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.

How to fix

Remediation Available

modsecurity-crsDebian

Fixed in:3.3.0-1+deb11u1CVE-2021-35368

Fixed in:3.3.2-1CVE-2021-35368

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.54%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Exploit3

Vendor Advisory1

owasp.org

Third-Party Advisory1

lists.debian.org

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.