CVE-2025-49795
Libxml: null pointer dereference leads to denial of service (dos)
02 Description
Libxml: null pointer dereference leads to denial of service (dos)
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.59% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 48.0% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-12.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-06-16 15:19Z1 YR AGO
- Last updated
- 2026-10-12 19:52Z16 DAYS AGO
- Reserved
- 2025-06-10
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-825Expired Pointer DereferenceBase
- Data version
- 5.2
- Document digest
- 33c0277708314e7fa634b3cc791fef90c71b4c7b1deff91556ef6afb5256a9d5
05 Affected products
06 References
- access.redhat.comRHSA-2025:10630https://access.redhat.com/errata/RHSA-2025:10630
- access.redhat.comRHSA-2025:19020https://access.redhat.com/errata/RHSA-2025:19020
- access.redhat.comRHSA-2026:7519https://access.redhat.com/errata/RHSA-2026:7519
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-49795
- bugzilla.redhat.comRHBZ#2372379https://bugzilla.redhat.com/show_bug.cgi?id=2372379
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libxml2/-/issues/932
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-253495.html
07 Fixed in
AlmaLinux 10
- libxml2 Fixed in 2.12.5-7.el10_0
- libxml2-devel Fixed in 2.12.5-7.el10_0
- libxml2-static Fixed in 2.12.5-7.el10_0
- python3-libxml2 Fixed in 2.12.5-7.el10_0
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Arch Linux
- libxml2 No fix yet
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 10
- libxml2 Fixed in 2.12.5-7.el10_0
- libxml2-devel Fixed in 2.12.5-7.el10_0
- libxml2-static Fixed in 2.12.5-7.el10_0
- python3-libxml2 Fixed in 2.12.5-7.el10_0
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- libxml2 Fixed in 2.14.5+dfsg-0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.