CVE-2023-47166: Milesight UR32L · Improper Authorization
Affects Milesight UR32LSource CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 50% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 1 May 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Milesight UR32L | Affected
| Fixed in– |
AI-suggested
- Immediately restrict network access to the Milesight UR32L devices by implementing network segmentation and firewall rules to limit firmware update requests to trusted management hosts only.
- Monitor network traffic for unusual or unauthorized firmware update attempts, especially targeting the luci2-io file-import functionality.
- Enforce strong authentication and authorization policies on device management interfaces to prevent unauthorized access.
- Coordinate with Milesight to obtain and apply firmware patches or updates addressing this vulnerability as soon as they become available.
- If patching is delayed, consider temporary compensating controls such as disabling remote firmware update capabilities or isolating affected devices from untrusted networks.
- Conduct regular security audits and vulnerability assessments on IoT and network gateway devices to detect similar authorization weaknesses.
- Educate network administrators about the risks of improper authorization in device management and the importance of strict access controls.
- Implement intrusion detection/prevention systems (IDS/IPS) tuned to detect exploitation attempts targeting this vulnerability.
Description
A firmware update vulnerability exists in the luci2-io file-import functionality of Milesight UR32L v32.3.0.7-r2. A specially crafted network request can lead to arbitrary firmware update. An attacker can send a network request to trigger this vulnerability.