No exploitation reportedFix available

CVE-2022-26504

Q: Is CVE-2022-26504 actively exploited?

Active exploitation of CVE-2022-26504 has not been confirmed. Its EPSS score was 2.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2022-26504?

CVE-2022-26504 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2022-03-17
Fixed in11.0.1.1261 · 10.0.1.4854
WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Improper authentication in Veeam Backup & Replication 9.5U3, 9.5U4,10.x and 11.x component used for Microsoft System Center Virtual Machine Manager (SCVMM) allows attackers execute arbitrary code via Veeam.Backup.PSManager.exe

Timeline

dates in UTC

2022-03-1721:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 15:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2022-26504?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2022-26504?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Veeam veeam backup \& replication

Branch	Affected	Fixed in	Source
11.0	≥ 11.0.0.825, < 11.0.1.1261	11.0.1.1261	NVD
10.0	≥ 10.0.0.4442, < 10.0.1.4854	10.0.1.4854	NVD
9.5	= 9.5.0.1536	no fix published	NVD
9.5	= 9.5.4.2615	no fix published	NVD
10.0	= 10.0.1.4854	no fix published	NVD
11.0	= 11.0.1.1261	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Veeam veeam backup \& replication to 11.0.1.1261 · 10.0.1.4854

Advisories and patches

veeam.comVendor Advisory
www.veeam.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-287read 2026-10-23
FIRST EPSSEPSS score2.4 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2022-03-17
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2022-26504?

Is CVE-2022-26504 actively exploited?

Active exploitation of CVE-2022-26504 has not been confirmed. Its EPSS score was 2.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-26504?

CVE-2022-26504 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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