Is CVE-2021-22960 in the CISA KEV catalog?

No. CVE-2021-22960 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22960?

CVE-2021-22960 has a CVSS v3 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2021-22960?

CVE-2021-22960 has an EPSS score of 2.30% (81th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22960?

Upgrade nodejs on debian 11 to 12.22.12~dfsg-1~deb11u1 or later.

CVE & CISA-KEV Catalog

CVE-2021-22960

MEDIUMEPSS 81th pctl

6.5

CVSS v3

NVD

Description

The parse function in llhttp < 2.1.4 and < 6.0.6. ignores chunk extensions when parsing the body of chunked requests. This leads to HTTP Request Smuggling (HRS) under certain conditions.

CWE-444

How to fix

Remediation Available

nodejsDebian

Fixed in:12.22.12~dfsg-1~deb11u1CVE-2021-22960

Fixed in:12.22.7~dfsg-1CVE-2021-22960

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

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

2.30%probability of exploitation in 30 days

81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Patch1

oracle.com

Exploit1

hackerone.com

Third-Party Advisory1

debian.org

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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.