Is CVE-2013-4122 in the CISA KEV catalog?

No. CVE-2013-4122 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-4122?

CVE-2013-4122 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2013-4122?

CVE-2013-4122 has an EPSS score of 3.59% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-4122?

Upgrade cyrus-sasl2 on debian 11 to 2.1.26.dfsg1-14 or later.

CVE & CISA-KEV Catalog

CVE-2013-4122

MEDIUMEPSS 88th pctl

4.3

CVSS v2

NVD

Description

Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.

CWE-189

How to fix

Remediation Available

cyrus-sasl2Debian

Fixed in:2.1.26.dfsg1-14CVE-2013-4122

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

3.59%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

git.cyrusimap.org

Other references8

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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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 2026-04-29.