CVE-2005-0260: Stack-based buffer overflow in the Discovery Service for BrightStor ARCserve Backup 11.1 and earlier allows...

Security readout for executives and security teams

CVE-2005-0260 is a remote code execution flaw in BrightStor ARCserve Backup 11.1 and earlier. A vulnerable Discovery Service can mishandle an oversized UDP packet, potentially letting an attacker run code on the backup server. Business risk is highest where legacy backup systems remain reachable on internal or external networks. Likely exposure is limited to organizations still running BrightStor ARCserve Backup 11.1 or earlier. Risk increases if UDP port 41524 is reachable from untrusted networks, broad internal segments, or systems where backup servers hold elevated credentials and sensitive recovery data. Prioritize this where legacy BrightStor backup infrastructure still exists. Backup servers are high-value targets because they often hold broad access and recovery data. If the service is reachable beyond a tightly controlled segment, remediation should be treated as time-sensitive despite the CVE’s age. Mitigation focus: Identify and retire BrightStor ARCserve Backup 11.1 or earlier installations.; Check CA or successor vendor guidance for fixed versions or supported migration paths.; Restrict UDP port 41524 to trusted management networks only..

Prepared

Jun 30, 2026, 01:08 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.