CVE-2026-50748Patch(ui / unifi_access)

LOWCVSS 9.9 · CRITICAL

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Patch ui unifi_access systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft

Recommended action window: High priority (within 72h)

NVD description

A malicious actor with access to the network and low privileges could exploit an Improper Input Validation vulnerability found in UniFi Access Application to execute a Command Injection on the host device.

ui CVEs Back to dashboard

2.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://community.ui.com/releases/Security-Advisory-Bulletin-066-066/984eceb3-49c8-4227-942d-671c289b3afc

Weakness type (CWE)

CWE-20

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

unifi_access

Threat summary

Public PoC is present in monitored signal
Patch or workaround signal is available
5 mentions across 4 observed days
Momentum state: stable

What's happening

PoC mentioned or linked in 1 signal
Patch or workaround mentioned in 3 signals
Technical details provided in 5 signals
Disclosure: 2 classified signals
Peaked 2d ago at 2 mentions (2026-07-03); latest day: 1
5 total mentions across 4 days

Affected systems

Vendors

Products

unifi_access

Deep dive

Activity timeline5 mentions / 4d

Signal classification2 categories

Patch

360.0%

Disclosure

240.0%

Referenced assets8 URLs

By indicator

Classification over time

Date	Total	Labels

2026-07-02	1	Disclosure1
2026-07-03	2	Patch2
2026-08-03	1	Patch1
2026-08-17	1	Disclosure1

Full discourse5 posts

I'M H4CK3R 42@luckyhacker4345d
Disclosure
$42,751 Ubiquiti Inc. Bug Bounty 🤑 Pre-Auth RCE in UniFi OS - CVE-2026-34909: One Request to Root Behind Seven Products by Catchify Security 🤯🔥 🔗 https://www.catchify.sa/post/pre-auth-rce-unifi-os-one-request-to-root CVEs 🔗 https://nvd.nist.gov/vuln/detail/CVE-2026-34909 🔗 https://nvd.nist.gov/vuln/detail/CVE-2026-50747 🔗 https://nvd.nist.gov/vuln/detail/CVE-2026-50748 Join team 👉http://t.me/luckyhacker42
Post summary
The text announces a Pre‑Auth Remote Code Execution vulnerability (CVE‑2026‑34909) in Ubiquiti UniFi OS, provides a link to a PoC, but does not mention exploit tools, active attacks, patches, or a debunking claim.
121017612320.2K
4.7K followersView on X
Upwind Security MDR@UpwindMDR91d
Patch
🚨Critical - Ubiquiti UniFi Access Application Command Injection (CVE-2026-50748) An improper input validation flaw in Ubiquiti's UniFi Access Application lets a network-adjacent attacker with low privileges inject and execute arbitrary OS commands on the host device. Unvalidated input reaches a host command, turning a low-privileged foothold into command execution on the underlying appliance. Because UniFi Access governs physical door and entry hardware, code execution on the host can undermine both the device and the access control it enforces. The flaw is remotely exploitable with low complexity, requires only low privileges, and needs no user interaction (CVSS 9.9). 👉Upgrade to UniFi Access Application 4.2.29.
Post summary
The content announces a critical command‑injection flaw in Ubiquiti UniFi Access that allows remote code execution and recommends upgrading to version 4.2.29 to remediate the issue.
00010123
236 followersView on X
IntegSec@integ_sec59d
Patch
CVE-2026-50748: UniFi Access Application Command Injection - What It Means for Your Business and How to Respond https://hubs.li/Q04rHy8G0
Post summary
The article is a mitigation guide for the UniFi CVE-2026-50748 command injection vulnerability, focusing on patching and response steps rather than providing exploit code or evidence of active exploitation.
0000048
32 followersView on X
ADK Cyber@ADKCyber90d
Patch
CVE-2026-50748 (CVSS 9.9) affects UniFi Access Application. Organizations using it should review the advisory and apply updates. http://adkcyber.com via NVD Recent High CVSS #CyberSecurity #InfoSec #Vulnerability https://t.co/FjXsLa7bbZ
Post summary
The tweet announces a high‑severity vulnerability in UniFi Access Application, urging users to review vendor advisories and apply available updates.
0000043
92 followersView on X
Vulmon Vulnerability Feed@VulmonFeeds91d
Disclosure
CVE-2026-50748 Command Injection in UniFi Access Application via Improper Input Validation https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-50748
Post summary
The entry announces a command injection vulnerability in the UniFi Access Application, but does not provide a PoC, exploit code, or information on active exploitation or patches.
00000131
4.1K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	ui	unifi_access	-	-	-

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What researchers are saying

CVE-2026-50748

I'M H4CK3R 42[verified]@luckyhacker43Disclosure

The text announces a Pre‑Auth Remote Code Execution vulnerability (CVE‑2026‑34909) in Ubiquiti UniFi OS, provides a link to a PoC, but does not mention exploit tools, active attacks, patches, or a debunking claim.

Upwind Security MDR[verified]@UpwindMDRPatch

The content announces a critical command‑injection flaw in Ubiquiti UniFi Access that allows remote code execution and recommends upgrading to version 4.2.29 to remediate the issue.

IntegSec[verified]@integ_secPatch

The article is a mitigation guide for the UniFi CVE-2026-50748 command injection vulnerability, focusing on patching and response steps rather than providing exploit code or evidence of active exploitation.

ADK Cyber[verified]@ADKCyberPatch

The tweet announces a high‑severity vulnerability in UniFi Access Application, urging users to review vendor advisories and apply available updates.

Vulmon Vulnerability Feed@VulmonFeedsDisclosure

The entry announces a command injection vulnerability in the UniFi Access Application, but does not provide a PoC, exploit code, or information on active exploitation or patches.