Published Oct 16, 2025Sources checked Nov 13, 2026
5.5MEDIUMCVSS out of 10
What this means
Review the available evidence
CVE-2025-11839 and is rated Medium severity with a CVSS score of 5.5. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.
What to do next
Remediation and response
Microsoft Security Response Center guidance
Vendor revision: Apr 14, 2026
CBL-Mariner Releases
Vendor-listed releases
2.41-11
2.37-20
CISA KEVNot listedBased on the latest collected catalog
EPSS0.3%Estimated 30-day exploitation probability
Ransomware useNot markedCISA KEV ransomware field
Threat actors0Source-linked actor relationships
Overview
What is CVE-2025-11839?
A security flaw has been discovered in GNU Binutils 2.45. Impacted is the function tg_tag_type of the file prdbg.c.
Performing a manipulation results in unchecked return value. The attack needs to be approached locally.
The exploit has been released to the public and may be used for attacks.