9.8

CVE-2022-25236: debian debian_linux Exposure of Resource to Wrong Sphere

Modified
AliasesALPINE-CVE-2022-25236SUSE-SU-2022:0842-1SUSE-SU-2022:0844-1
Published 16-02-2022Last modified 14-10-2026

Vulnerability summary

CVE-2022-25236 is a critical (CVSS 9.8) Exposure of Resource to Wrong Sphere vulnerability in debian debian_linux. EPSS estimates a 35.27% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 9.8 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 35% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
35.27%
0%100%
High · +1.10 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 50 · Related 28
DLA-2935-1DSA-5085-1MGASA-2022-0081MGASA-2022-0156MGASA-2022-0157MGASA-2026-0173

Timeline

  1. 16-02-2022
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

35.27%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

Increase +1.10 pp

From 34.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse40 products
  • expat&distro=HPE Helion OpenStack 8< 2.1.0-21.22.1
  • expat&distro=SUSE Enterprise Storage 6< 2.2.5-3.19.1
  • expat&distro=SUSE Enterprise Storage 7< 2.2.5-3.19.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS< 2.2.5-3.19.1
  • expat&distro=SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS< 2.2.5-3.19.1
Ubuntu13 products
  • ayttm< 0.6.3-3ubuntu0.1~esm1
  • cableswig< 0.1.0+git20150808-2ubuntu0.1~esm1
  • coin3< 3.1.4~abc9f50-4ubuntu2+esm2 | < 3.1.4~abc9f50+dfsg1-1ubuntu0.1~esm2 | < 3.1.4~abc9f50+dfsg3-2ubuntu0.1~esm1
  • expat< 2.1.0-4ubuntu1.4+esm4 | < 2.1.0-7ubuntu0.16.04.5+esm2 | < 2.2.5-3ubuntu0.4 | < 2.2.9-1ubuntu0.2
  • firefox< 1:1snap1-0ubuntu1
Debian3 products
  • expat< 2.4.5-1
  • libxmltokAll versions (No fix recorded)
  • debian_linuxEOL10.0 | 11.0
Oracle2 products
Alpine1 product
  • expat< 2.2.10-r2 | < 2.2.10-r4 | < 2.4.5-r0
Libexpat_project1 product
Opensuse1 product
  • expat&distro=openSUSE Leap 15.3< 2.2.5-3.19.1
Siemens1 product

8 vendors · 62 products

References

37 links
Show all 37 references