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CVE-2025-8732

19
FAUCET Score

CVE-2025-8732 describes an uncontrolled recursion vulnerability in the xmlParseSGMLCatalog function of libxml2 versions up to 2.14.5, specifically within its xmlcatalog component. This vulnerability is rated as LOW severity (CVSS 3.3) due to its requirement for local access and low impact, potentially leading to a denial of service (A:L). While publicly disclosed, its practical exploitability is questioned by maintainers, who note the necessity of untrusted and likely unused SGML catalogs. There is currently no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.15.2CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
< 4.0CPE matchmatch criteria
cpe:2.3:o:siemens:ruggedcom_rst2428p_firmware:*:*:*:*:*:*:*:*
>= 4.1.0, < 4.1.1.30CPE matchmatch criteria
cpe:2.3:a:ibm:vios:*:*:*:*:*:*:*:*
4.1.2.0CPE matchmatch criteria
cpe:2.3:a:ibm:vios:4.1.2.0:*:*:*:*:*:*:*
>= 7.2.5, < 7.2.5.12CPE matchmatch criteria
cpe:2.3:o:ibm:aix:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

1.9LOW

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
NONE
VS Integrity
NONE
VS Availability
LOW
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 48th percentile among its peer group of 1,511 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

microsoftpatch availablevia msrc
Product: 20825-17084Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: 20960-17084Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: 20961-17084Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: 20901-17086Fixed in: 2.10.4-11
microsoftpatch availablevia msrc
Product: 20940-17086Fixed in: 2.10.4-11
microsoftpatch availablevia msrc
Product: azl3 libxml2 2.11.5-9 on Azure Linux 3.0Fixed in: 2.11.5-9
microsoftpatch availablevia msrc
Product: cbl2 libxml2 2.10.4-10 on CBL Mariner 2.0Fixed in: 2.10.4-11
microsoftpatch availablevia msrc
Product: cbl2 libxml2 2.10.4-11 on CBL Mariner 2.0Fixed in: 2.10.4-11
microsoftpatch availablevia msrc
Product: azl3 libxml2 2.11.5-8 on Azure Linux 3.0Fixed in: 2.11.5-9

Vendor Advisories (2)

microsoft2025-Aug/CVE-2025-8732Low

libxml2 xmlcatalog xmlParseSGMLCatalog recursion

Aug 12, 2025
redhatCVE-2025-8732Low

libxml2: libxml2: Uncontrolled Recursion Vulnerability

Aug 8, 2025

References

cert-portal.siemens.com / productcert/html/ssa-253495.html
Third Party Advisory
drive.google.com / file/d/1woIeYVcSQB_NwfEhaVnX6MedpWJ_nqWl/view
Broken Link
gitlab.gnome.org / GNOME/libxml2/-/issues/958
ExploitIssue TrackingThird Party Advisory
gitlab.gnome.org / GNOME/libxml2/-/issues/958
ExploitIssue TrackingThird Party Advisory
vuldb.com
Permissions RequiredThird Party Advisory
vuldb.com
Permissions RequiredThird Party Advisory
vuldb.com
Permissions RequiredThird Party Advisory