Wiz
Vulnerability DatabaseCVE-2023-20834

CVE-2023-20834: 
NixOS vulnerability analysis and mitigation

Overview

CVE-2023-20834 is a medium severity vulnerability discovered in MediaTek's pda component. The vulnerability was identified and disclosed in September 2023, affecting various MediaTek chipsets including MT6879, MT6886, MT6895, MT6983, MT6985, MT8175, MT8188, MT8195, MT8365, and MT8781 running Android versions 12.0 and 13.0 (MediaTek Bulletin).

Technical details

The vulnerability is classified as a Use After Free (UAF) issue caused by a race condition in the pda component. It has been assigned a CVSS v3.1 Base Score of 6.4 (Medium) with the vector string CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H. The vulnerability is tracked under CWE-416 (Use After Free) and CWE-362 (Race Condition) categories (NVD).

Impact

The vulnerability could lead to local escalation of privilege with System execution privileges. The exploitation does not require user interaction, though it does require high privileges for successful exploitation (MediaTek Bulletin).

Mitigation and workarounds

MediaTek has addressed this vulnerability through patch ID: ALPS07608514. The fix was included in the September 2023 security bulletin and has been made available to device manufacturers (MediaTek Bulletin).

Additional resources

Source: This report was generated using AI

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-14330CRITICAL9.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox_esr
NoYesDec 09, 2025
CVE-2025-14329HIGH8.8
  • NixOSNixOS
  • cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
NoYesDec 09, 2025
CVE-2025-14333HIGH8.1
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025
CVE-2025-14332HIGH7.3
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025
CVE-2025-14331MEDIUM6.5
  • NixOSNixOS
  • firefox
NoYesDec 09, 2025

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Additional Wiz resources

Cloud Vulnerability DB

Cloud Vulnerability DB

A community-led vulnerabilities database

Cloud Threat Landscape

Cloud Threat Landscape

A threat intelligence database

PEACH

PEACH

A tenant isolation framework

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management
Get a demo