CVE-2026-21709

At a glance

Severity: MEDIUM 6.7
EPSS: EPSS 0.17 % · percentile 6 (2026-10-27)
State: PUBLISHED
Published: 2026-04-17
Updated: 2026-04-20
Assigner: hackerone
NVD status: Awaiting Analysis

Description

A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.7	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	MEDIUM 6.7	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-77

European references

ENISA EUVD · EUVD-2026-23438
GCVE · GCVE-0-2026-21709

Affected products

Product	Versions
Veeam · Backup and Replication	affected 12 < 12.3.2
Veeam · Software Appliance	affected 13 < 13.0.1

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD