What is CVE-2022-26500?

CVE-2022-26500 is a high-severity vulnerability in Veeam Backup \& Replication, classified under Path Traversal. CVSS score: 8.8/10. Published 2022-03-17.

How severe is CVE-2022-26500?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2022-26500 known to be exploited?

Yes. CVE-2022-26500 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-13), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.

Path Traversal in Veeam Backup \& Replication

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-03-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.058 (93.1th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.058 · newest: 0.058 · change: 0.000

Affected products

Veeam Backup \& Replication — versions 9.5.0.1536, 9.5.4.2615, 10.0.1.4854

Weakness classification (CWE)

CWE-22 — Path Traversal

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-12-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2023-01-03.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

veeam.com (Vendor Advisory)
www.veeam.com/kb4288 (Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2022-26500?: CVE-2022-26500 is a high-severity vulnerability in Veeam Backup \& Replication, classified under Path Traversal. CVSS score: 8.8/10. Published 2022-03-17.
How severe is CVE-2022-26500?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2022-26500 known to be exploited?: Yes. CVE-2022-26500 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-12-13), indicating it is being actively exploited. 8 public proof-of-concept repositories are indexed.