CVE-2022-22824

moderate-risk
Published 2022-01-10

defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

Do I need to act?

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0.43% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Debian Siemens Libexpat Project Tenable

References (12)

Mailing List http://www.openwall.com/lists/oss-security/2022/01/17/3
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Patch https://github.com/libexpat/libexpat/pull/539
Third Party Advisory https://security.gentoo.org/glsa/202209-24
Third Party Advisory https://www.debian.org/security/2022/dsa-5073
Third Party Advisory https://www.tenable.com/security/tns-2022-05
Mailing List http://www.openwall.com/lists/oss-security/2022/01/17/3
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Patch https://github.com/libexpat/libexpat/pull/539
Third Party Advisory https://security.gentoo.org/glsa/202209-24
Third Party Advisory https://www.debian.org/security/2022/dsa-5073
Third Party Advisory https://www.tenable.com/security/tns-2022-05
46
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 2/34 · Minimal
Exposure 12/34 · Low