Unauthenticated agent crash via oversized handshake UUID
Published Jul 9, 2026 · Updated Jul 9, 2026
Stack buffer overflow in Vinchin Backup & Recovery through 9.0.0.86562 allows remote attackers to crash agentlink_server without authentication. ModuleHandShake measures the attacker-controlled _listen_uuid with strlen() and copies it with strcpy() into a fixed-length stack buffer without checking its capacity. A crafted network request overwrites the saved return address, corrupting control flow and terminating the process without credentials or user interaction.
Summary
What happened
Stack buffer overflow in Vinchin Backup & Recovery through 9.0.0.86562 allows remote attackers to crash agentlink_server without authentication. ModuleHandShake measures the attacker-controlled _listen_uuid with strlen() and copies it with strcpy() into a fixed-length stack buffer without checking its capacity. A crafted network request overwrites the saved return address, corrupting control flow and terminating the process without credentials or user interaction.
The record
- CVE
- CVE-2026-60095
- Published
- Jul 9, 2026
- Updated
- Jul 9, 2026
- Vendor
- Vinchin
- Product
- Vinchin Backup & Recovery
- Classifications
- CWE-121, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 9, 2026CVE publishedPublication date reported by the CVE source.
- Jul 9, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=9.0.0.86562
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo