CVE-2022-25236

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

35.87% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 98.3% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2022-02-16 00:39Z4 YR AGO

Last updated

2025-05-05 16:23Z1 YR AGO

Reserved

2022-02-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

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

Weaknesses

• CWE-668Exposure of Resource to Wrong SphereClass
• CWE-179Incorrect Behavior Order: Early ValidationBase

Data version

5.1

Document digest

172abfd885f040211f77cc42e1629053e05589ac7af418b56d10e81cfea8c617

• github.comhttps://github.com/libexpat/libexpat/pull/561x_refsource_MISC
• www.openwall.com[oss-security] 20220219 Expat 2.4.5 released, includes 5 security fixeshttp://www.openwall.com/lists/oss-security/2022/02/19/1mailing-listx_refsource_MLIST
• www.debian.orgDSA-5085https://www.debian.org/security/2022/dsa-5085vendor-advisoryx_refsource_DEBIAN
• lists.fedoraproject.orgFEDORA-2022-04f206996bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2022-3d9d67f558https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/vendor-advisoryx_refsource_FEDORA
• lists.debian.org[debian-lts-announce] 20220307 [SECURITY] [DLA 2935-1] expat security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlmailing-listx_refsource_MLIST
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2022.htmlx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20220303-0008/x_refsource_CONFIRM
• packetstormsecurity.comhttp://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.htmlx_refsource_MISC
• cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfx_refsource_CONFIRM
• security.gentoo.orgGLSA-202209-24https://security.gentoo.org/glsa/202209-24vendor-advisoryx_refsource_GENTOO