8.5
HIGH
CVE-2025-24903
Signal Service Rust Impersonation Vulnerability
Description

libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, any contact may forge a sync message, impersonating another device of the local user. The origin of sync messages is not checked. Patched libsignal-service can be found after commit 82d70f6720e762898f34ae76b0894b0297d9b2f8. The `Metadata` struct contains an additional `was_encrypted` field, which breaks the API, but should be easily resolvable. No known workarounds are available.

INFO

Published Date :

Feb. 13, 2025, 4:16 p.m.

Last Modified :

Feb. 13, 2025, 4:16 p.m.

Remotely Exploitable :

Yes !

Impact Score :

4.7

Exploitability Score :

3.1
Affected Products

The following products are affected by CVE-2025-24903 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-24903.

URL Resource
https://github.com/whisperfish/libsignal-service-rs/commit/82d70f6720e762898f34ae76b0894b0297d9b2f8
https://github.com/whisperfish/libsignal-service-rs/security/advisories/GHSA-r58q-66g9-h6g8

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-24903 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-24903 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Feb. 13, 2025

    Action Type Old Value New Value
    Added Description libsignal-service-rs is a Rust version of the libsignal-service-java library which implements the core functionality to communicate with Signal servers. Prior to commit 82d70f6720e762898f34ae76b0894b0297d9b2f8, any contact may forge a sync message, impersonating another device of the local user. The origin of sync messages is not checked. Patched libsignal-service can be found after commit 82d70f6720e762898f34ae76b0894b0297d9b2f8. The `Metadata` struct contains an additional `was_encrypted` field, which breaks the API, but should be easily resolvable. No known workarounds are available.
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N
    Added CWE CWE-345
    Added Reference https://github.com/whisperfish/libsignal-service-rs/commit/82d70f6720e762898f34ae76b0894b0297d9b2f8
    Added Reference https://github.com/whisperfish/libsignal-service-rs/security/advisories/GHSA-r58q-66g9-h6g8
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-24903 is associated with the following CWEs:

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability