CVE•Published 2026-03-12•Modified 2026-05-10•1 article on news•6 live references•NVD data
CVE-2026-21671Veeam · Veeam_backup_\&_replication
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
56
Exploit Prediction Scoring System · top 44% of all CVEs
Weaknesses (CWE)
Description
A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.
Timeline
Published 2026-03-12
Modified 2026-05-10
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-21671Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Veeam Veeam Backup \& Replication"All exposed Veeam Veeam Backup \& Replication instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Veeam Backup \& Replication"HTTP body or banner mentions "Veeam Backup \& Replication" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-21671Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-21671Censys host search filtered to this CVE id.
grep.app
CVE-2026-21671Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-21671GitHub code search for direct mentions.
Google dork
"CVE-2026-21671" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-21671 on GitHub.