CVE-2025-52883 Details
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.
A vulnerability in the Meshtastic-Android application, prior to version 2.5.21, allows an attacker to send an unencrypted direct message to a victim while impersonating any node in the mesh network. The message appears in the same chat as other communications with that node and is falsely indicated as being protected by Public Key Cryptography (PKC). This misrepresentation creates a false sense of security for the victim, who believes the communication is encrypted and legitimate. The issue has been patched in version 2.5.21.
Users are advised to update to Meshtastic-Android version 2.5.21 or later, which includes a patch for this vulnerability. After updating, the application will correctly handle public key mismatches and provide appropriate warnings when messages are not encrypted with PKC.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 24, 2025CISA-ADP
Assessed Jun 24, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/meshtastic/Meshtastic-Android/pull/1720 | [email protected] | Issue TrackingVendor |
| https://github.com/meshtastic/Meshtastic-Android/security/advisories/GHSA-h4rg-g6f3-ghh7 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-1287 | Improper Validation of Specified Type of Input | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Meshtastic-Android | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 24, 2025 | New CVE Received | [email protected] |