Vulnerability Intelligence Report
CVE-2022-25235
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
No Active Exploit Signals
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:4.92%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-116 ↗CWE-116 Improper Encoding or Escaping of Output
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| libexpat_project | libexpat | all |
| debian | debian_linux | 10.0, 11.0 |
| fedoraproject | fedora | 34, 35 |
| oracle | http_server | 12.2.1.3.0, 12.2.1.4.0 |
| oracle | zfs_storage_appliance_kit | 8.8 |
| siemens | sinema_remote_connect_server | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
4.915%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | MITRE Corporation · N/A · USA |
| Reserved | 2022-02-16T00:00:00 |
| Published | 2022-02-16T00:40:20 |
| Last Updated | 2025-05-05T16:23:52 |
Community Chatter & Buzz