CVE-2026-60094: Out-of-bounds Write in Vinchin Backup & Recovery 9.0
Vinchin Backup & Recovery through 9.0.0.86562 contains a heap buffer overflow vulnerability that allows unauthenticated remote attackers to cause process crash or memory corruption by sending a malformed TCP packet with an unchecked body_len field to the agentlink_server service. Attackers can craft a malicious packet that passes an attacker-controlled length directly to recv(), triggering a heap overflow of up to approximately 4 GiB and resulting in process crash or potential memory corruption.
AI Analysis
Technical Summary
CVE-2026-60094 is a heap buffer overflow vulnerability in Vinchin Backup & Recovery through version 9.0.0.86562. The flaw exists in the agentlink_server service, where the body_len field of a TCP packet is not properly checked before being passed to the recv() function. An attacker can craft a malicious packet with an attacker-controlled length, triggering a heap overflow of up to approximately 4 GiB. This can cause the process to crash or lead to memory corruption. The vulnerability is remotely exploitable without authentication and requires no user interaction.
Potential Impact
Successful exploitation can cause denial of service via process crash or potentially lead to memory corruption, which might be leveraged for further attacks. The vulnerability affects the availability and integrity of the affected service. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the agentlink_server service to trusted hosts only to reduce exposure.
CVE-2026-60094: Out-of-bounds Write in Vinchin Backup & Recovery 9.0
Description
Vinchin Backup & Recovery through 9.0.0.86562 contains a heap buffer overflow vulnerability that allows unauthenticated remote attackers to cause process crash or memory corruption by sending a malformed TCP packet with an unchecked body_len field to the agentlink_server service. Attackers can craft a malicious packet that passes an attacker-controlled length directly to recv(), triggering a heap overflow of up to approximately 4 GiB and resulting in process crash or potential memory corruption.
CVSS v4.0
Score 6.9medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-60094 is a heap buffer overflow vulnerability in Vinchin Backup & Recovery through version 9.0.0.86562. The flaw exists in the agentlink_server service, where the body_len field of a TCP packet is not properly checked before being passed to the recv() function. An attacker can craft a malicious packet with an attacker-controlled length, triggering a heap overflow of up to approximately 4 GiB. This can cause the process to crash or lead to memory corruption. The vulnerability is remotely exploitable without authentication and requires no user interaction.
Potential Impact
Successful exploitation can cause denial of service via process crash or potentially lead to memory corruption, which might be leveraged for further attacks. The vulnerability affects the availability and integrity of the affected service. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting network access to the agentlink_server service to trusted hosts only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-07-08T13:27:53.029Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4fa37d68715ace4372bc7c
Added to database: 07/09/2026, 13:34:53 UTC
Last enriched: 08/15/2026, 13:47:15 UTC
Last updated: 08/23/2026, 23:47:53 UTC
Views: 101
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