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PatchSiren cyber security CVE debrief

CVE-2022-26500 Veeam CVE debrief

CVE-2022-26500 is a remote code execution vulnerability in Veeam Backup & Replication that CISA added to the Known Exploited Vulnerabilities catalog on 2022-12-13. CISA also marks it as having known ransomware campaign use, which makes prompt patching and validation especially important. The supplied corpus does not include exploit mechanics or affected-version details, so the safest action is to follow vendor update guidance immediately.

Vendor
Veeam
Product
Backup & Replication
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2022-12-13
Original CVE updated
2022-12-13
Advisory published
2022-12-13
Advisory updated
2022-12-13

Who should care

Administrators, backup platform owners, security teams, and incident responders responsible for Veeam Backup & Replication deployments.

Technical summary

CISA’s KEV entry identifies CVE-2022-26500 as a remote code execution vulnerability in Veeam Backup & Replication. The vulnerability was added to the KEV catalog on 2022-12-13, with a required remediation date of 2023-01-03, and CISA notes known ransomware campaign use. The supplied source material does not provide the affected version range, root cause, or exploitation details.

Defensive priority

High. KEV listing means known exploitation, and the ransomware-campaign indicator raises operational risk for backup environments.

Recommended defensive actions

  • Apply vendor-provided updates or mitigations for Veeam Backup & Replication as soon as possible.
  • Inventory all Veeam Backup & Replication deployments and confirm they are covered by the latest approved remediation.
  • Validate the backup environment for unexpected changes, unusual authentication activity, or signs of tampering.
  • If compromise is suspected, follow incident response procedures and coordinate with the vendor’s guidance referenced by CISA.

Evidence notes

The source corpus is a CISA Known Exploited Vulnerabilities record published on 2022-12-13. It lists vendorProject Veeam, product Backup & Replication, vulnerabilityName "Veeam Backup & Replication Remote Code Execution Vulnerability," dateAdded 2022-12-13, dueDate 2023-01-03, requiredAction "Apply updates per vendor instructions.", and knownRansomwareCampaignUse "Known." The corpus also includes official CVE and NVD links, but no affected versions or exploit mechanics.

Official resources

Publicly listed by CISA in the Known Exploited Vulnerabilities catalog on 2022-12-13.