CVE-2026-60094Network attack vector

Unauthenticated process crash via unchecked packet length

Published Jul 9, 2026 · Updated Jul 9, 2026

Heap buffer overflow in Vinchin Backup & Recovery 9.0.0.86562 and earlier allows unauthenticated remote attackers to crash agentlink_server. The service trusts the packet body_len field and passes that attacker-controlled size directly to recv(), allowing a heap overwrite of up to about 4 GiB. Reachability requires network access to agentlink_server; the confirmed consequence is process crash, and no code-execution impact is established.

CVSS severity6.9
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in Vinchin Backup & Recovery 9.0.0.86562 and earlier allows unauthenticated remote attackers to crash agentlink_server. The service trusts the packet body_len field and passes that attacker-controlled size directly to recv(), allowing a heap overwrite of up to about 4 GiB. Reachability requires network access to agentlink_server; the confirmed consequence is process crash, and no code-execution impact is established.

The record

CVE
CVE-2026-60094
Published
Jul 9, 2026
Updated
Jul 9, 2026
Vendor
Vinchin
Product
Vinchin Backup & Recovery
Classifications
CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=9.0.0.86562

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vinchin · Vinchin Backup & Recoveryversion=0 <=9.0.0.86562

Published CVSS scores

6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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

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Your stack

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