CVE-2026-34875 Memory corruption in n/a
A buffer overflow in Mbed TLS FFDH key export allows attackers to execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-34875?
CVE-2026-34875 is a critical memory corruption vulnerability in n/a, published on 1 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in public key export for FFDH keys.
Weakness: CWE-120
Which versions are affected by CVE-2026-34875?
It affects 2 products.
Products include Trustedfirmware Mbed Tls, Trustedfirmware Tf-Psa-Crypto.
How do I fix CVE-2026-34875?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-34875 being exploited?
There is no known exploitation of CVE-2026-34875 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2024-49195 Memory corruption in n/a
- CVE-2024-45158 Memory corruption in n/a
- CVE-2024-45159 Auth bypass in n/a
- CVE-2023-45199 Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.
- CVE-2026-34873 An issue was discovered in Mbed TLS 3.5.0 through 4.0.0.
Sources
Also known as DEBIAN-CVE-2026-34875, ECHO-d2ff-7e29-2b4b, GHSA-g3pc-q77x-rjjp, ROOT-OS-DEBIAN-12-CVE-2026-34875, UBUNTU-CVE-2026-34875.