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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2025-23121

A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user

HIGH 8.8EPSS 24.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 24.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

A vulnerability allowing remote code execution (RCE) on the Backup Server by an authenticated domain user

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
24.74% probability · 98th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-94
Affected
veeam/veeam backup \& replication
Source
support@hackerone.com
EPSS trend
0%13%25%24 September 2026: 24.20%1 November 2026: 24.74%24 September 20261 November 2026

EPSS moved from 24.2% on 24 September 2026 to 24.7% on 1 November 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.