CVE-2026-34910

CRITICAL CISA KEV

CVSS v3.1: 10.0 · EPSS: 0.3362 (98.2 percentile) · CISA KEV: Yes

CISA KEVEPSS highNetworkNo privilegesNo user interactionImproper Input ValidationVendor advisory ref

Source data as of:

At a glance

Severity
CRITICAL
CVSS
10.0 v3.1 · NVD
EPSS
0.3362 (98.2 percentile) · FIRST.org
CISA KEV
Yes KEV added: 2026-06-23
Type
Improper Input Validation · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Published
2026-05-22 · Modified: 2026-06-23
References
Jump to references (3)

CVSS / EPSS / KEV

CVSS v3.1 10.0 / 10 CRITICAL Source: NVD
EPSS 0.3362 98.2 percentile Source: FIRST.org
CISA KEV Yes KEV added: 2026-06-23 Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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.

Record details

CVE ID
CVE-2026-34910
CVSS (v3.1)
10.0 (CRITICAL)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Exploitability subscore
3.9
Impact subscore
6.0
EPSS
0.3362 (98.2 percentile) — 2026-06-24
CISA KEV
Yes — KEV added: 2026-06-23, Remediation due (CISA): 2026-06-26
Known ransomware use
Unknown
Weakness (CWE)
CWE-20
Affected configurations (CPE)
0
Published
2026-05-22
Modified
2026-06-23
Status
Undergoing Analysis

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same weakness type (CWE)

CVE-2026-54588 CRITICAL CVSS 9.6 CVE-2023-6879 CRITICAL CVSS 9.0 CVE-2011-0627 HIGH CVSS 8.8 CVE-2026-39998 HIGH CVSS 8.8

Published the same year

CVE-2026-10561 CRITICAL CVSS 10.0 CVE-2026-27604 CRITICAL CVSS 10.0 CVE-2026-34908 CRITICAL CVSS 10.0 KEV CVE-2026-34909 CRITICAL CVSS 10.0 KEV
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