xmllint CLI Buffer Overflow via Oversized Input in Interactive Shell
CVE-2025-6170 Published on June 16, 2025
Libxml2: stack buffer overflow in xmllint interactive shell command handling
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.
Vulnerability Analysis
CVE-2025-6170 is exploitable with local system access, requires user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Timeline
Reported to Red Hat.
Made public.
Weakness Type
What is a Stack Overflow Vulnerability?
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2025-6170 has been classified to as a Stack Overflow vulnerability or weakness.
Products Associated with CVE-2025-6170
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Vulnerable Packages
The following package name and versions may be associated with CVE-2025-6170
| Package Manager | Vulnerable Package | Versions | Fixed In |
|---|---|---|---|
| rubygems | nokogiri | < 1.18.9 | 1.18.9 |
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.