Veeam Backup Replication
CVE-2026-21670
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability allowing a low-privileged user to extract saved SSH credentials.
AnalysisAI
Unauthorized SSH credential extraction affects systems where low-privileged users can access stored authentication material, enabling account compromise without administrative access. The network-accessible vulnerability requires valid user credentials to exploit but impacts the entire system's security posture by exposing sensitive SSH keys. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Low-privileged user account on the system. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 7.7 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker could exploit this vulnerability to compromise the affected system. |
| Remediation | Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all systems running the vulnerable software and assess which contain SSH credentials; restrict local access to affected systems where possible and review user access logs. …
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External POC / Exploit Code
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