# CVE-2025-52883: Meshtastic-Android vulnerable to forged DMs with no PKC showing up as encrypted

> Attackers can send unencrypted messages that falsely appear encrypted, deceiving users into trusting malicious content.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2025
- **Updated:** 24 Jun 2025
- **Also known as:** GHSA-h4rg-g6f3-ghh7

## What is CVE-2025-52883?

CVE-2025-52883 is a medium-severity vulnerability in Meshtastic-Android, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Meshtastic-Android is an Android application for the mesh radio software Meshtastic. Prior to version 2.5.21, an attacker is able to send an unencrypted direct message to a victim impersonating any other node of the mesh. This message will be displayed in the same chat that the victim normally communicates with the other node and it will appear as using PKC, while it is not. This means that the victim will be provided with a false sense of security due to the green padlock displayed when using PKC and they'll read the attacker's message as legitimate. Version 2.5.21 contains a patch for the issue. It is suggested to implement a stricter control on whether a message has been received using PKC or using the shared Meshtastic channel key. Moreover, instead of showing no green padlock icon in the chat with no PKC, consider using an explicit indicator like, for example, the yellow half-open padlock displayed when in HAM mode. This remediation, however, applies to the client applications rather than the Meshtastic firmware.

Weakness: CWE-1287 (Improper Validation of Specified Type of Input)

## Which versions are affected by CVE-2025-52883?


## How do I fix CVE-2025-52883?

No fix has been published for CVE-2025-52883 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-52883 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52883 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-52883 and fix it if it is affected.

What it is: CVE-2025-52883 is a medium-severity vulnerability in Meshtastic-Android, published on 24 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52883 exists.

Affected product: Meshtastic-Android. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-52883/ (Markdown: https://insights.sbomify.com/CVE-2025-52883/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-52883
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-52883
- OSV: https://osv.dev/vulnerability/CVE-2025-52883

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-52883/
Summaries are generated and may contain mistakes; the official description above is the record.