Buffer overflow in Libxml2 - CVE-2016-1834

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Main Vulnerability Database Vulnerabilities #VU109824

Buffer overflow in Libxml2 - CVE-2016-1834

Published: May 26, 2025


Vulnerability identifier: #VU109824
CSH Severity: High
CVSS v4: 7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-1834
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to heap-based buffer overflow in the xmlStrncat function in libxml2. A local user can trick the victim into opening a specially crafted file to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document.


Affected software

Libxml2
IBM Observability with Instana

How to mitigate CVE-2016-1834

Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Libxml2 - update to 2.9.4
IBM Observability with Instana - update to 1.0.295

External References

Related Security Bulletins