Is CVE-2022-4891 in the CISA KEV catalog?

No. CVE-2022-4891 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-4891?

CVE-2022-4891 has a CVSS v3 base score of 3.5 (LOW).

What is the EPSS score for CVE-2022-4891?

CVE-2022-4891 has an EPSS score of 1.34% (68th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-4891?

Upgrade sisimai to 4.25.14 or later.

CVE & CISA-KEV Catalog

CVE-2022-4891

LOW

3.5

CVSS v3

NVD

Description

A vulnerability has been found in Sisimai up to 4.25.14p11 and classified as problematic. This vulnerability affects the function to_plain of the file lib/sisimai/string.rb. The manipulation leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. Upgrading to version 4.25.14p12 is able to address this issue. The name of the patch is 51fe2e6521c9c02b421b383943dc9e4bbbe65d4e. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-218452.

CWE-1333

How to fix

Remediation Available

sisimaiNVD

Affected:< 4.25.14Fixed in:4.25.14CVE-2022-4891derived from NVD

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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

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

Exploit Intelligence

1.34%probability of exploitation in 30 days

68thpercentile

Moderate risk: more likely to be exploited than 68% of all known CVEs.

References

Patch2

Exploit1

gist.githubusercontent.com

Third-Party Advisory3

Related Vulnerabilities

Other CWE-1333 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-3364	High	7.5	45%	-	Fix
CVE-2024-8124	High	7.5	40%	-	Fix
CVE-2024-25126	Medium	5.3	35%	-	Fix
CVE-2024-2651	Medium	6.5	33%	-	Fix
CVE-2021-32837	High	7.5	29%	-	Fix
CVE-2024-2829	High	7.5	26%	-	Fix

Embed a live status badge for CVE-2022-4891

Markdown

[![CVE-2022-4891](https://tridentstack.com/cve/badge/CVE-2022-4891.svg)](https://tridentstack.com/cve/CVE-2022-4891)

HTML

<a href="https://tridentstack.com/cve/CVE-2022-4891"><img src="https://tridentstack.com/cve/badge/CVE-2022-4891.svg" alt="CVE-2022-4891"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.