CVE-2025-49795Libxml: null pointer dereference leads to denial of service (dos)
- 7.5HighCVSS base score
- 0.62%Exploitation in 30 daysEPSS · top 50% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.
Timeline
ID reserved
By redhat
- 6 days later
· 6 days later
Published
- 17 months later
· 17 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.62% · top 50% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 2.10.0 – < 2.14.5
Red Hat · Red Hat Enterprise Linux 10
- unaffected 0:2.12.5-7.el10_0 – < *
Red Hat · Red Hat JBoss Core Services 2.4.62.SP2
All versions: unaffected
Red Hat · Red Hat Hardened Images
- unaffected 2.15.2-0.3.hum1 – < *
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 8
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 9
All versions: unaffected
What to do
Workaround: Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability.
References
References7
- RHSA-2025:10630 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:19020 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:7519 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-49795 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2372379 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/libxml2/-/issues/932 (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-253495.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-18416 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-49795)Record last updated .