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CVE-2022-26500

HIGH
8.8
CVSS Score
Published: March 17, 2022 at 08:56 PM UTC
Updated: June 17, 2026 at 04:35 AM UTC
1 product affected across 1 vendorVeeam Backup & Replication

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Severity
HIGH8.8
Exploitation
CISA KEV
Exploit prediction
EPSS 6%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score5.8%

EPSS (Exploit Prediction Scoring System) estimates a 5.8% chance this CVE is exploited in the wild within the next 30 days — higher than 93% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

The Veeam Distribution Service in the Backup & Replication application allows unauthenticated users to access internal API functions. A remote attacker can send input to the internal API which may lead to uploading and executing of malicious code.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Dec 13, 2022
Remediation Due
Jan 3, 2023
1397 days overdue
Notes
https://www.veeam.com/kb4288
https://nvd.nist.gov/vuln/detail/CVE-2022-26500

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Veeam Backup & Replication· Veeam
95%
10.0.0.4442 ≤ v < 10.0.1.485411.0.0.825 ≤ v < 11.0.1.126110.0.1.485410.0.1.4854 p2020120210.0.1.4854 p2021060911.0.1.126111.0.1.1261 p2021112311.0.1.1261 p202112119.5.0.15369.5.4.2615
Affected range stops below 10.0.1.4854, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.0.1.1261, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://veeam.com
x_refsource_MISCVendor Advisory
Source: [email protected]
https://www.veeam.com/kb4288
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26500

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-22

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