CVE-2022-26500
HighExploitedPublic exploitImproper 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.
Published Mar 17, 2022 · Updated Nov 3, 2025
Key Facts
Patch immediately- CVE-2022-26500 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Veeam Backup \& Replication.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 24, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 5.8% probability of exploitation in the next 30 days.
- Fixed versions are available, including Veeam Backup \& Replication 10.0.1.4854.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
5.8%
Higher than 93.0% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2022-26500 brief as a PDF
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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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Dec 13, 2022 | Jan 3, 2023 | Known |
| Industry KEV feed | Oct 24, 2022 | Jan 3, 2023 | Known |
| CIRCL KEV | Dec 13, 2022 | Jan 3, 2023 | Known |
| ENISA EUVD | Dec 13, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Veeam Backup \& ReplicationVeeam | 10.0.1.4854, 10.0.1.4854-p20201202, 10.0.1.4854-p20210609, 11.0.1.1261, 11.0.1.1261-p20211123, 11.0.1.1261-p20211211, 9.5.0.1536, 9.5.4.2615 | 10.0.1.4854 |
Patched Releases
Veeam Backup \& Replication
10.0.1.4854
Timeline
Publicly disclosed
Mar 17, 2022
Added to Industry KEV feed
Oct 24, 2022
Added to CISA KEV
Dec 13, 2022
Added to CIRCL KEV
Dec 13, 2022
Added to ENISA EUVD
Dec 13, 2022
Last updated
Nov 3, 2025
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisoryhttps://veeam.com
- advisoryhttps://www.veeam.com/kb4288
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Veeam Backup \& Replication versions 10.0.1.4854, 10.0.1.4854-p20201202, 10.0.1.4854-p20210609, 11.0.1.1261, 11.0.1.1261-p20211123, 11.0.1.1261-p20211211, 9.5.0.1536, 9.5.4.2615. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 24, 2022 and is known to be used in ransomware campaigns.
Yes. It was added on Dec 13, 2022 with a federal remediation due date of Jan 3, 2023.
Public exploit code is available.
Fixed versions are available, including Veeam Backup \& Replication 10.0.1.4854.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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