CVE-2021-39767
NixOS vulnerability analysis and mitigation

Overview

In miniadb, there is a possible way to get read/write access to recovery system properties due to an insecure default value. This vulnerability (CVE-2021-39767) affects Android-12L and was identified with Android ID A-201308542. The vulnerability could lead to local escalation of privilege with no additional execution privileges needed, and user interaction is not required for exploitation (Android Bulletin).

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability is classified under CWE-1188 (Insecure Default Initialization of Resource). The local attack vector, low attack complexity, and no requirement for user interaction make this vulnerability particularly concerning from a security perspective (NVD).

Impact

The vulnerability allows an attacker to gain read/write access to recovery system properties, which could lead to local escalation of privilege. The high CVSS score indicates that successful exploitation could result in significant impact to confidentiality, integrity, and availability of the affected system (NVD).

Mitigation and workarounds

The vulnerability affects Android-12L systems. Users and administrators should apply the security updates provided through the Android security bulletin to address this vulnerability (Android Bulletin).

Additional resources


SourceThis report was generated using AI

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-69264CRITICAL9.8
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2025-69263HIGH8.8
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2025-69262HIGH7.8
  • JavaScriptJavaScript
  • pnpm
NoYesJan 07, 2026
CVE-2025-20807MEDIUM6.7
  • NixOSNixOS
  • android
NoNoJan 06, 2026
CVE-2026-21885MEDIUM6.5
  • NixOSNixOS
  • miniflux
NoYesJan 08, 2026

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

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