Search/CVE-2022-23990
● CVE — High

CVE-2022-23990

Vendordebian, fedoraproject, tenable, siemens, libexpat projectProductdebian linux, fedora, nessus, sinema remote connect server, libexpat, communications metasolv solutionDiscoveredJan 26, 2022UpdatedMay 5, 2025

Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.

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CVSS v3.1
7.5 HIGH
EPSS
4.69%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
0
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
▲ 0.70pp
3.99% → 4.69% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityNONE
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Connections
7 relationships
Timeline
disclosure → media coverage
Jan 26, 2022
Disclosure — published as a CVE record. · last revised by NVD May 5, 2025
Public PoC (1)
github.com/Satheesh575555/external_expat_AOSP10_r33_CVE-2022-23990
Unverified third-party code — review before executing.