Is CVE-2001-0191 in the CISA KEV catalog?

No. CVE-2001-0191 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2001-0191?

CVE-2001-0191 has a CVSS v2 base score of 10.0 (HIGH).

What is the EPSS score for CVE-2001-0191?

CVE-2001-0191 has an EPSS score of 5.50% (92th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2001-0191?

Upgrade gnuserv to 3.12 or later.

CVE & CISA-KEV Catalog

CVE-2001-0191

HIGHEPSS 92th pctl

10.0

CVSS v2

NVD

Description

gnuserv before 3.12, as shipped with XEmacs, does not properly check the specified length of an X Windows MIT-MAGIC-COOKIE cookie, which allows remote attackers to execute arbitrary commands via a buffer overflow, or brute force authentication by using a short cookie length.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

gnuservNVD

Affected:< 3.12Fixed in:3.12CVE-2001-0191derived from NVD

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

5.50%probability of exploitation in 30 days

92ndpercentile

High risk: more likely to be exploited than 92% of all known CVEs.

References

Patch4

Third-Party Advisory1

exchange.xforce.ibmcloud.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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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 2026-04-16.