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10.0
CVE-2026-34910KEVEXPLOITEDPATCHED
ubiquiti · unifi os

CVE-2026-34910: A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS

Description

A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.

Affected Products

VendorProductVersions
ubiquitiunifi os0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0

Also Affects

Downstream vendors/products affected by this vulnerability

VendorProductSourceConfidence
ubiquitiunificert_advisory90%

References

  • https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b
  • https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-34910.yaml(exploit, nuclei)

Related News (3 articles)

Tier D
Heise Security17d ago
UniFi OS Server: Kritische Sicherheitslücken ermöglichen Angriffe
→ No new info (linked only)
Tier B
BSI Advisories22d ago
[NEU] [hoch] Ubiquiti UniFi OS Server: Mehrere Schwachstellen
→ No new info (linked only)
Tier C
VulDB22d ago
CVE-2026-34910 | Ubiquiti UniFi OS Server up to 5.0.7 input validation
→ No new info (linked only)
CVSS 3.110.0 CRITICAL
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA KEV✅ Yes
Actively exploited✅ Yes
Patch available
5.0.85.1.125.1.115.1.10
CWECWE-20
PublishedMay 22, 2026
Last enriched22d agov2
Tags
input validationremote attack
Trending Score11
Source articles3
Independent3
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Related CVEs (5)

CRITICALCVE-2026-34908EXPKEV
CVE-2026-34908: A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS de
Trending: 105
CRITICALCVE-2026-47370EXP
CVE-2026-47370: A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability
Trending: 55
HIGHCVE-2026-48610EXP
CVE-2026-48610: Under certain network configurations, a malicious actor with access to network could exploit an Improper Access Control
Trending: 42
CRITICALCVE-2026-47369
CVE-2026-47369: A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability
Trending: 41
HIGHCVE-2026-47368
CVE-2026-47368: A malicious actor with access to the network could exploit a Path Traversal vulnerability found in certain devices runni
Trending: 23

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
May 22, 2026
Added to CISA KEV
May 22, 2026
Discovered by ZDM
May 22, 2026
Updated: affectedVersions, severity, activelyExploited, tags
May 22, 2026
Actively Exploited
May 23, 2026
Exploit Available
May 23, 2026
Patch Available
May 23, 2026

Version History

v2
Last enriched 22d ago
v2Tier C22d ago

Updated affected versions to include 5.0.7, changed severity to HIGH, and noted that the vulnerability is actively exploited.

affectedVersionsseverityactivelyExploitedtags
via VulDB
v122d ago

Initial creation