How severe is CVE-2022-26500?

CVE-2022-26500 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-2022-26500 being actively exploited?

Yes. CVE-2022-26500 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-12-13, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2022-26500?

CVE-2022-26500 primarily affects Veeam Veeam Backup & Replication. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-26500?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2022-26500 have an EU (EUVD) identifier?

Yes. CVE-2022-26500 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-31058. It is also flagged as exploited in the EUVD (since 2022-12-13).

When was CVE-2022-26500 published?

CVE-2022-26500 was published on 2022-03-17 and last updated on 2026-06-17.

CVE-2022-26500

CVE-2022-26500 is a high-severity vulnerability in Veeam Veeam Backup & Replication with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2022-12-13). The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Yes — listed in CISA KEV (added 2022-12-13)
EU (EUVD) id: EUVD-2022-31058
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2022-12-13)
Weakness: CWE-22
Affected product: Veeam Veeam Backup & Replication
Published: 2022-03-17
Last modified: 2026-06-17

Description

Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4,10.x, and 11.x allows remote authenticated users access to internal API functions that allows attackers to upload and execute arbitrary code.

Frequently asked questions

What is CVE-2022-26500?: Improper limitation of path names in Veeam Backup & Replication 9.5U3, 9.5U4,10.x, and 11.x allows remote authenticated users access to internal API functions that allows attackers to upload and execute arbitrary code.
How severe is CVE-2022-26500?: CVE-2022-26500 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-2022-26500 being actively exploited?: Yes. CVE-2022-26500 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2022-12-13, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2022-26500?: CVE-2022-26500 primarily affects Veeam Veeam Backup & Replication. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-26500?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2022-26500 have an EU (EUVD) identifier?: Yes. CVE-2022-26500 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-31058. It is also flagged as exploited in the EUVD (since 2022-12-13).
When was CVE-2022-26500 published?: CVE-2022-26500 was published on 2022-03-17 and last updated on 2026-06-17.

References

Affected products (9)

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: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:*:*:*:*:*:*

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