7.5High
Xmlsoft Libxslt
CVE-2025-7424
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.
What this means for your business
- It affects Xmlsoft Libxslt. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 1% chance of attack attempts being seen in the next 30 days, ranking above 67% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Xmlsoft Libxslt, and which version. The affected versions are listed further down this page.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness
- CWE-843
- Assigned by
- secalert@redhat.com
Dates
- Published
- 2025-07-10
- Last modified
- 2026-09-01
- Sources
- NVD
Affected products
- Xmlsoft Libxsltall versions
- Redhat Openshift Container Platform4.0
- Redhat Enterprise Linux6.0, 7.0, 8.0, 9.0, 10.0
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://access.redhat.com/errata/RHBA-2025:12345
- https://access.redhat.com/errata/RHSA-2026:11015
- https://access.redhat.com/security/cve/CVE-2025-7424
- https://bugzilla.redhat.com/show_bug.cgi?id=2379228
- https://gitlab.gnome.org/GNOME/libxslt/-/issues/139
- http://seclists.org/fulldisclosure/2025/Aug/0
- http://seclists.org/fulldisclosure/2025/Jul/30
- http://seclists.org/fulldisclosure/2025/Jul/32
- http://seclists.org/fulldisclosure/2025/Jul/33
- http://seclists.org/fulldisclosure/2025/Jul/35
- http://seclists.org/fulldisclosure/2025/Jul/37
- http://www.openwall.com/lists/oss-security/2025/07/11/2
- https://lists.debian.org/debian-lts-announce/2025/09/msg00024.html