Vulnerability Description
A flaw was found in polkit. When processing input that begins with a null byte, an arithmetic error in the authentication agent helper causes an integer underflow during buffer length calculation, resulting in an out-of-bounds memory read. An attacker capable of supplying crafted input can trigger this flaw, potentially causing an application crash and resulting in a Denial of Service (DoS).
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:66287
- https://access.redhat.com/security/cve/CVE-2026-85498
- https://bugzilla.redhat.com/show_bug.cgi?id=2528347
FAQ
What is CVE-2026-85498?
CVE-2026-85498 is a vulnerability with a CVSS score of 3.5 (LOW). A flaw was found in polkit. When processing input that begins with a null byte, an arithmetic error in the authentication agent helper causes an integer underflow during buffer length calculation, res...
How severe is CVE-2026-85498?
CVE-2026-85498 has been rated LOW with a CVSS base score of 3.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-85498?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.