Is CVE-2021-27292 in the CISA KEV catalog?

No. CVE-2021-27292 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-27292?

CVE-2021-27292 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-27292?

CVE-2021-27292 has an EPSS score of 3.37% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-27292?

Upgrade node-ua-parser-js on debian 11 to 0.7.24+ds-1 or later.

CVE & CISA-KEV Catalog

CVE-2021-27292

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

ua-parser-js >= 0.7.14, fixed in 0.7.24, uses a regular expression which is vulnerable to denial of service. If an attacker sends a malicious User-Agent header, ua-parser-js will get stuck processing it for an extended period of time.

How to fix

Remediation Available

node-ua-parser-jsDebian

Fixed in:0.7.24+ds-1CVE-2021-27292

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.37%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch2

Exploit1

gist.github.com

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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.