CVE-2025-6170: Stack-based Buffer Overflow
A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the xmllint command-line tool's interactive shell, part of the libxml2 library used for XML parsing. When a user inputs an excessively long command, the input size is not properly validated, which can lead to a crash and potentially allow code execution in rare cases lacking modern exploit mitigations. Red Hat has released security updates addressing this issue in libxml2 packages for Red Hat Enterprise Linux 8 and 10, as documented in their advisories RHSA-2026:36734 and RHSA-2026:39304.
Potential Impact
The vulnerability can cause the xmllint tool to crash due to a stack buffer overflow. In rare configurations without modern exploit mitigations, it might allow an attacker to execute arbitrary code. However, the overall impact is rated low with no confidentiality or integrity loss, and no known active exploitation has been reported.
Mitigation Recommendations
Official patches are available from Red Hat for affected versions of libxml2 in Red Hat Enterprise Linux 8 and 10. Users should apply the updates as described in Red Hat advisories RHSA-2026:36734 and RHSA-2026:39304. No additional mitigation actions are required beyond applying these official fixes.
CVE-2025-6170: Stack-based Buffer Overflow
Description
A flaw was found in the interactive shell of the xmllint command-line tool, used for parsing XML files. When a user inputs an overly long command, the program does not check the input size properly, which can cause it to crash. This issue might allow attackers to run harmful code in rare configurations without modern protections.
CVSS v3.1
Score 2.5low
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack-based buffer overflow in the xmllint command-line tool's interactive shell, part of the libxml2 library used for XML parsing. When a user inputs an excessively long command, the input size is not properly validated, which can lead to a crash and potentially allow code execution in rare cases lacking modern exploit mitigations. Red Hat has released security updates addressing this issue in libxml2 packages for Red Hat Enterprise Linux 8 and 10, as documented in their advisories RHSA-2026:36734 and RHSA-2026:39304.
Potential Impact
The vulnerability can cause the xmllint tool to crash due to a stack buffer overflow. In rare configurations without modern exploit mitigations, it might allow an attacker to execute arbitrary code. However, the overall impact is rated low with no confidentiality or integrity loss, and no known active exploitation has been reported.
Mitigation Recommendations
Official patches are available from Red Hat for affected versions of libxml2 in Red Hat Enterprise Linux 8 and 10. Users should apply the updates as described in Red Hat advisories RHSA-2026:36734 and RHSA-2026:39304. No additional mitigation actions are required beyond applying these official fixes.
Technical Details
- Data Version
- 5.1
- Assigner Short Name
- redhat
- Date Reserved
- 2025-06-16T05:59:31.739Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/errata/RHSA-2026:7519","vendor":"Red Hat"},{"url":"https://access.redhat.com/security/cve/CVE-2025-6170","vendor":"Red Hat"}]
Threat ID: 6850440da8c9212743845920
Added to database: 06/16/2025, 16:19:25 UTC
Last enriched: 08/11/2026, 13:27:41 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 159
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