What’s Vulnerable › Vulnerabilities
CVE-2023-24068
- Severity: high (CVSS 7.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-01-23 · updated 2026-06-17
Description
Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to modify conversation attachments within the attachments.noindex directory. Client mechanisms fail to validate modifications of existing cached files, resulting in an attacker's ability to insert malicious code into pre-existing attachments or replace them completely. A threat actor can forward the existing attachment in the corresponding conversation to external groups, and the name and size of the file will not change, allowing the malware to masquerade as another file. NOTE: the vendor disputes the relevance of this finding because the product is not intended to protect against adversaries with this degree of local access.
Affected products
- Signal-Desktop: through 6.2.0
References
- https://johnjhacking.com/blog/cve-2023-24068-cve-2023-24069/
- https://signal.org/download/linux
- https://signal.org/download/macos
- https://signal.org/en/download/windows
- https://johnjhacking.com/blog/cve-2023-24068-cve-2023-24069/
- https://signal.org/download/linux
- https://signal.org/download/macos
- https://signal.org/en/download/windows
Get alerted when CVE-2023-24068 or the next vulnerability affects your stack