Cyber Resilience

CVE-2022-25313

MediumDDoS

Published: 18 February 2022

Published
18 February 2022
Modified
30 May 2025
KEV Added
—
Patch
—
CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score 0.0016 37.3th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-25313 is a medium-severity Uncontrolled Recursion (CWE-674) vulnerability in Debian Debian Linux. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 37.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

CWE(s)
CWE-674

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

libexpat project
libexpat
≤ 2.4.5
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
≤ 3.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

CP-7 Alternate Processing Site
addresses: CWE-674

Supports resumption at alternate site when uncontrolled recursion causes primary site failure or crash.

SC-5 Denial-of-service Protection
addresses: CWE-674

Prevents uncontrolled recursion that exhausts stack or CPU resources.

References