Vinchin Backup & Recovery 9.0.0.86562 Stack Buffer Overflow via ModuleHandShake
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
Vinchin Backup & Recovery through 9.0.0.86562 contains a stack buffer overflow vulnerability in the ModuleHandShake function of the agentlink_server service that allows unauthenticated remote attackers to overwrite the saved return address by supplying an oversized _listen_uuid field that is measured via strlen() and copied without bounds checking into a fixed-length stack buffer using strcpy(). Attackers can send a crafted request with a malicious _listen_uuid value to corrupt the stack and achieve process crash or potential control flow hijack without requiring authentication.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-60095
- 2026-10-03 Alias added: GHSA-34r7-v6pv-xq6v
References
Advisory 1
Other 1
More Vinchin vulnerabilities
- TI-2024-15173 Vinchin Backup & Recovery v7.2 was discovered to be configured with default root credentials. CVSS 3.1CRITICAL 9.8
- TI-2024-15172 Vinchin Backup & Recovery v7.2 was discovered to use default MYSQL credentials. CVSS 3.1CRITICAL 9.8
- TI-2024-16656 Vinchin Backup and Recovery 7.2 and Earlier is vulnerable to Authenticated Remote Code… CVSS 3.1HIGH 8.8
- TI-2024-15174 Vinchin Backup & Recovery v7.2 was discovered to contain an authenticated remote code… CVSS 3.1HIGH 8.8
- TI-2024-15170 Vinchin Backup & Recovery v7.2 was discovered to contain an authenticated remote code… CVSS 3.1HIGH 8.8
- TI-2023-24360 VinChin Backup & Recovery v5.0.*, v6.0.*, v6.7.*, and v7.0.* was discovered to contain a… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-60095 · CVE Program
- CVE-2026-60095 · NVD
- FIRST EPSS
- GHSA-34r7-v6pv-xq6v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences