CVE-2026-21668

mediumpriority · track · 26OT risk · elevatedEPSS 0.005 · 45 %ileDEEUNLUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.53% (45th) EPSS

CVSS 6.5 · medium

Is it mine?

6 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · ncsc_nl

EPSS · scored 2026-10-27

A vulnerability allowing an authenticated domain user to bypass restrictions and manipulate arbitrary files on a Backup Repository.

cvss

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

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–8.8

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · support@hackerone.comexploitability 2.8 · impact 5.9

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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-862USprimaryCWE-693US

affected products (6)

Products and version ranges known to be affected.

Veeam Backup & Replication <12.3.2.4465all versionscert_bundDE
Veeam Backup & Replication< 12.3.2.4465cert_bundDE
Veeam Backup and Replication12.3.2 → 12.3.2enisa_euvdEU
Veeam Backup & Replication≤ vers:unknown/*ncsc_nlNL
Veeam Software Appliance≤ vers:unknown/*ncsc_nlNL
veeam veeam backup & replication12.0.0.1402 → 12.3.2.4465nvdUScpe: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 (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund ncsc_nl nvd NVD CVE.org MITRE

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

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Related entries.

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+11474 more

references (3)

External citations — patches, advisories, analysis.

https://www.veeam.com/kb4830 cnnvd
https://www.veeam.com/kb4830 enisa_euvd
https://www.veeam.com/kb4830Vendor Advisorynvd

scry

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