libxslt: Access of Resource Using Incompatible Type
CVE-2025-7424 is a high-severity access of resource using incompatible type vulnerability in libxslt from GNOME, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.1.44 as the first without the flaw, so updating libxslt to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.3% chance of exploitation within 30 days, higher than 71% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update libxslt to 1.1.44 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| GNOME | libxslt | before 1.1.44 | 1.1.44 |
| Red Hat | Red Hat Enterprise Linux 10 | Not specified in the record | Not stated |
| Red Hat | Red Hat Hardened Images | Not specified in the record | Not stated |
| Red Hat | Red Hat Enterprise Linux 6 | Not specified in the record | Not stated |
| Red Hat | Red Hat Enterprise Linux 7 | Not specified in the record | Not stated |
| Red Hat | Red Hat Enterprise Linux 8 | Not specified in the record | Not stated |
| Red Hat | Red Hat Enterprise Linux 9 | Not specified in the record | Not stated |
| Red Hat | Red Hat OpenShift Container Platform 4 | Not specified in the record | Not stated |
| Red Hat | Openshift Container Platform | 4.0 | Not stated |
| Red Hat | Enterprise Linux | 6.0; 7.0; 8.0; 9.0; 10.0 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (redhat.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations. This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Access of Resource Using Incompatible Type
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
More Access of Resource Using Incompatible Type vulnerabilities (CWE-843)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- access.redhat.com/security/cve/CVE-2025-7424Third Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=2379228Issue Tracking, Third Party Advisory
Other references
- access.redhat.com/errata/RHBA-2025:12345
- access.redhat.com/errata/RHSA-2026:11015
- gitlab.gnome.org/GNOME/libxslt/-/issues/139
- seclists.org/fulldisclosure/2025/Aug/0
- seclists.org/fulldisclosure/2025/Jul/30
- seclists.org/fulldisclosure/2025/Jul/32
- seclists.org/fulldisclosure/2025/Jul/33
- seclists.org/fulldisclosure/2025/Jul/35
- seclists.org/fulldisclosure/2025/Jul/37
- openwall.com/lists/oss-security/2025/07/11/2
- lists.debian.org/debian-lts-announce/2025/09/msg00024.html
Recent Access of Resource Using Incompatible Type vulnerabilities
- 8.8 High severity
- 8.1 High severity
Google Chromium V8 Type Confusion Exploited
- 8.8 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.8 High severity
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