CVE-2023-24068
highpriority · track · 31EPSS 0.004 · 31 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-24068/cnnvd
- https://johnjhacking.com/blog/cve-2023-24068-cve-2023-24069/cnnvd
- https://signal.org/download/linuxcnnvd
- https://signal.org/download/macoscnnvd
- https://signal.org/en/download/windowscnnvd
- https://johnjhacking.com/blog/cve-2023-24068-cve-2023-24069/enisa_euvd
- https://signal.org/download/linuxenisa_euvd
- https://signal.org/download/macosenisa_euvd
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