CVE-2026-62834

critical EU-CRITICAL

EUVD alias: EUVD-2026-63688

Assigned by CNA: microsoft

Published 2026-08-20 · Modified 2026-08-20

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CVSS v3

9.3

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.3

Description

<p>Improper verification of cryptographic signature in Azure Data Factory allows an unauthorized attacker to elevate privileges over a network.</p>

Predictions

Exploit likelihood

95%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Windows Affected 1 release

Version	Status	Fixed in
—	Affected	—

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62834

CWEs

CWE-347

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.