CVE-2025-31714: Unisoc (Shanghai) Technologies SL8521E/SL8521ET/ SL8541E/UIS8141E/UWS6137/UWS6137E/UWS6151(E)/UWS6152 · Improper Input Validation
Affects Unisoc (Shanghai) Technologies SL8521E/SL8521ET/ SL8541E/UIS8141E/UWS6137/UWS6137E/UWS6151(E)/UWS6152Source CVE Database V5
Not known to be exploited · CVSS 6.8 Medium.
Data as of 25 Oct 2026, 19:02 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 20% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Aug 2025
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 2026-10-25.
What to do
AI-suggested
1. Inventory and Identification: Conduct a thorough inventory of all devices within the organization to identify those using Unisoc chipsets, specifically the affected models and running Mocor5 or Android 8.1/9. 2. Access Controls: Restrict physical and local access to devices, as the vulnerability requires local access for exploitation. Implement strict device usage policies and secure storage for devices. 3. Software Updates: Monitor Unisoc and device manufacturers for patches or firmware updates addressing this vulnerability. Apply updates promptly once available. 4. Device Hardening: Disable or restrict access to Developer Tools on affected devices where possible, as the vulnerability resides in this component. 5. Network Segmentation: Isolate devices with Unisoc chipsets on separate network segments to limit potential lateral movement if a device is compromised. 6. Endpoint Detection: Deploy endpoint security solutions capable of detecting unusual privilege escalation attempts or anomalous behavior on mobile and embedded devices. 7. User Awareness: Train users on the risks of local device access and the importance of reporting lost or stolen devices immediately. 8. Vendor Engagement: Engage with device vendors and Unisoc for timely information on patches and mitigation strategies. 9. Incident Response Preparedness: Prepare incident response plans that include scenarios involving local privilege escalation on mobile and embedded devices.
Description
In Developer Tools, there is a possible missing verification incorrect input. This could lead to local escalation of privilege with no additional execution privileges needed.