Is CVE-2022-25236 in the CISA KEV catalog?

No. CVE-2022-25236 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-25236?

CVE-2022-25236 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2022-25236?

CVE-2022-25236 has an EPSS score of 35.87% (98th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-25236?

Upgrade expat on debian 11 to 2.2.10-2+deb11u2 or later. Fixes are available for 22 affected products.

CVE & CISA-KEV Catalog

CVE-2022-25236

CRITICALEPSS 98th pctl

9.8

CVSS v3

NVD

Description

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

CWE-668

How to fix

Remediation Available

expatDebian

Fixed in:2.2.10-2+deb11u2CVE-2022-25236

Fixed in:2.4.5-1CVE-2022-25236

ayttmUbuntu

Fixed in:0.6.3-3ubuntu0.1~esm1USN-8314-1

cableswigUbuntu

Fixed in:0.1.0+git20150808-2ubuntu0.1~esm1USN-8316-1

coin3Ubuntu

Fixed in:3.1.4~abc9f50-4ubuntu2+esm2USN-8241-1

Fixed in:3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2USN-8241-1

Fixed in:3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1USN-8241-1

expatUbuntu

Fixed in:2.1.0-4ubuntu1.4+esm4USN-5288-1

Fixed in:2.1.0-7ubuntu0.16.04.5+esm2USN-5288-1

Fixed in:2.2.5-3ubuntu0.4USN-5288-1

Fixed in:2.2.9-1ubuntu0.2USN-5288-1

insighttoolkitUbuntu

Fixed in:3.20.1+git20120521-6ubuntu0.1~esm1USN-8235-1

lib64expat1Ubuntu

Fixed in:2.1.0-4ubuntu1.4+esm4USN-5288-1

Fixed in:2.1.0-7ubuntu0.16.04.5+esm2USN-5288-1

libcoin80Ubuntu

Fixed in:3.1.4~abc9f50-4ubuntu2+esm2USN-8241-1

libcoin80-runtimeUbuntu

Fixed in:3.1.4~abc9f50-4ubuntu2+esm2USN-8241-1

Fixed in:3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2USN-8241-1

Fixed in:3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1USN-8241-1

libcoin80v5Ubuntu

Fixed in:3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2USN-8241-1

Fixed in:3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1USN-8241-1

libexpat1Ubuntu

Fixed in:2.1.0-4ubuntu1.4+esm4USN-5288-1

Fixed in:2.1.0-7ubuntu0.16.04.5+esm2USN-5288-1

Fixed in:2.2.5-3ubuntu0.4USN-5288-1

Fixed in:2.2.9-1ubuntu0.2USN-5288-1

libinsighttoolkit3.20Ubuntu

Fixed in:3.20.1+git20120521-6ubuntu0.1~esm1USN-8235-1

libxmlrpc-c++8Ubuntu

Fixed in:1.33.06-0ubuntu1+esm1USN-8313-1

libxmlrpc-c++8t64Ubuntu

Fixed in:1.33.14-12ubuntu0.1~esm1USN-8313-1

libxmlrpc-c++8v5Ubuntu

Fixed in:1.33.14-1ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.18.04.1~esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.20.04.1~esm1USN-8313-1

Fixed in:1.33.14-10ubuntu0.1~esm1USN-8313-1

libxmlrpc-core-c3Ubuntu

Fixed in:1.33.06-0ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-1ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.18.04.1~esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.20.04.1~esm1USN-8313-1

Fixed in:1.33.14-10ubuntu0.1~esm1USN-8313-1

libxmlrpc-core-c3t64Ubuntu

Fixed in:1.33.14-12ubuntu0.1~esm1USN-8313-1

libxmltokUbuntu

Fixed in:1.2-3ubuntu0.16.04.1~esm2USN-5455-1

Fixed in:1.2-4ubuntu0.18.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.20.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.22.04.1~esm1USN-5455-1

libxmltok1Ubuntu

Fixed in:1.2-3ubuntu0.16.04.1~esm2USN-5455-1

Fixed in:1.2-4ubuntu0.18.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.20.04.1~esm1USN-5455-1

Fixed in:1.2-4ubuntu0.22.04.1~esm1USN-5455-1

swish-eUbuntu

Fixed in:2.4.7-4ubuntu0.1~esm1USN-8240-1

Fixed in:2.4.7-5ubuntu1+esm1USN-8240-1

Fixed in:2.4.7-6ubuntu0.1~esm1USN-8240-1

Fixed in:2.4.7-6.1ubuntu0.1~esm1USN-8240-1

Fixed in:2.4.7-6.2ubuntu0.1~esm1USN-8240-1

xmlrpc-api-utilsUbuntu

Fixed in:1.33.06-0ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-1ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.18.04.1~esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.20.04.1~esm1USN-8313-1

Fixed in:1.33.14-10ubuntu0.1~esm1USN-8313-1

Fixed in:1.33.14-12ubuntu0.1~esm1USN-8313-1

xmlrpc-cUbuntu

Fixed in:1.33.06-0ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-1ubuntu1+esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.18.04.1~esm1USN-8313-1

Fixed in:1.33.14-8ubuntu0.20.04.1~esm1USN-8313-1

Fixed in:1.33.14-10ubuntu0.1~esm1USN-8313-1

Fixed in:1.33.14-12ubuntu0.1~esm1USN-8313-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

35.87%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Patch2

Third-Party Advisory7

Other references2

Related Vulnerabilities

Other CWE-668 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39952	Critical	9.8	100%	-	Fix
CVE-2017-16597	Critical	9.8	57%	-	-
CVE-2017-16603	High	8.8	54%	-	-
CVE-2024-25153	Critical	9.8	42%	-	Fix
CVE-2017-0215	Medium	5.3	36%	-	-
CVE-2018-7846	Critical	9.8	30%	-	-

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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 2025-05-05.