Exploited vulnerability · CISA KEV

Is CVE-2022-26500 exploited? Yes: in CISA KEV since 13 Dec 2022

Gociux · Veeam Backup & Replication · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2022-26500, Veeam Backup & Replication Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 13 Dec 2022, 271 days after it was published. It is known to be used in ransomware campaigns. It affects Veeam Backup & Replication. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 13 Dec 2022

ransomwareKnownused in campaigns

EPSStop 10%more likely than most to be exploited

severity8.8CVSS 3.1 · high

US federal due3 Jan 2023BOD 22-01 deadline

What it is

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.

Vendor	Veeam (4 exploited CVEs in KEV)
Product	Backup & Replication
Vulnerability	Veeam Backup & Replication Remote Code Execution Vulnerability
Weakness	CWE-22
Published	17 Mar 2022
Added to KEV	13 Dec 2022
Reported by (CNA)	mitre

What to do

Check whether you run it. Look for Backup & Replication in your asset inventory, including appliances and cloud images. Stack check lists every exploited Veeam CVE at once.
Apply the fix. Apply updates per vendor instructions.
If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 17 Mar 2022.
Get told next time. Email alerts when CISA adds a CVE for Veeam.

Other exploited CVEs in Backup & Replication

CVE-2024-40711: Veeam Backup and Replication Deserialization Vulnerability (17 Oct 2024)
CVE-2023-27532: Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability (22 Aug 2023)
CVE-2022-26501: Veeam Backup & Replication Remote Code Execution Vulnerability (13 Dec 2022)

References

Questions

Is CVE-2022-26500 being exploited?

Yes. CISA added CVE-2022-26500 to the Known Exploited Vulnerabilities catalog on 13 Dec 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2022-26500 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2022-26500?

Apply updates per vendor instructions. Check Veeam's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Backup & Replication and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in December 2022 · Veeam scorecard · act-now radar.

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