CVE-2026-21671

criticalpriority · track · 0EPSS 0.014 · 71 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.35% (71st) EPSS

CVSS 9.1 · critical

Is it mine?

7 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1

v3.19.1criticalAV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · support@hackerone.comexploitability 2.3 · impact 6

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USprimaryCWE-284USCWE-693US

affected products (7)

Products and version ranges known to be affected.

Veeam Backup & Replication <13.0.1.2067all versionscert_bundDE
Veeam Backup & Replication< 13.0.1.2067cert_bundDE
Veeam Software Appliance13.0.1 → 13.0.1enisa_euvdEU
Veeam Software AG Veeam Backup & Replication13.0 → 13.0.1.1071fstec_bduRU
Veeam Backup & Replication≤ vers:unknown/*ncsc_nlNL
Veeam Software Appliance≤ vers:unknown/*ncsc_nlNL
veeam veeam backup & replication13.0.0.496 → 13.0.1.1071nvdUScpe:2.3:a:veeam:veeam_backup_\&_replication:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0096Kwetsbaarheden verholpen in Veeam Backup & ReplicationNL2026-03-12csaf · ncsc_nlNL
Veeam heeft kwetsbaarheden verholpen in Veeam Backup & Replication.
WID-SEC-W-2026-0709Veeam Backup & Replication: Mehrere SchwachstellenDeutsch2026-03-11csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Veeam Backup & Replication ausnutzen, um beliebigen Programmcode auszuführen, sich erweiterte Berechtigungen zu verschaffen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-03-12modified 2026-06-17

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+10437 more

references (4)

External citations — patches, advisories, analysis.

scry

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