How severe is CVE-2022-26504?

CVE-2022-26504 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-26504 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-26504?

CVE-2022-26504 primarily affects Veeam Veeam Backup & Replication. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26504?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-26504 published?

CVE-2022-26504 was published on 2022-03-17 and last updated on 2026-06-17.

CVE-2022-26504

CVE-2022-26504 is a high-severity vulnerability in Veeam Veeam Backup & Replication with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Veeam Veeam Backup & Replication
Published: 2022-03-17
Last modified: 2026-06-17

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

Frequently asked questions

What is CVE-2022-26504?: 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
How severe is CVE-2022-26504?: CVE-2022-26504 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-26504 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-26504?: CVE-2022-26504 primarily affects Veeam Veeam Backup & Replication. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26504?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-26504 published?: CVE-2022-26504 was published on 2022-03-17 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:9.5.0.1536:*:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:9.5.4.2615:*:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:-:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:p20201202:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:p20210609:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:10.0.1.4854:p20220304:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:-:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211123:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20211211:*:*:*:*:*:*
cpe:2.3:a:veeam:veeam_backup_\&_replication:11.0.1.1261:p20220302:*:*:*:*:*:*

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