CVE-2023-40440 Information disclosure in macOS
An attacker can read S/MIME encrypted emails because the system may inadvertently send them unencrypted due to state management flaws.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-40440?
CVE-2023-40440 is a high-severity vulnerability in Apple Macos, published on 11 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
This issue was addressed with improved state management of S/MIME encrypted emails. This issue is fixed in macOS Monterey 12.6.8. A S/MIME encrypted email may be inadvertently sent unencrypted.
Which versions are affected by CVE-2023-40440?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2023-40440?
No fix has been published for CVE-2023-40440 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-40440 being exploited?
There is no known exploitation of CVE-2023-40440 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-ppmf-rp3c-49x9.