CVE-2015-0843 Memory corruption in yubiserver
Buffer overflows in yubiserver allow attackers to execute arbitrary code or cause denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-0843?
CVE-2015-0843 is a critical memory corruption vulnerability in yubiserver, published on 26 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
yubiserver before 0.6 is prone to buffer overflows due to misuse of sprintf.
Weakness: CWE-120
Which versions are affected by CVE-2015-0843?
It affects 1 product.
Products include Debian Yubiserver.
How do I fix CVE-2015-0843?
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-2015-0843 being exploited?
There is no known exploitation of CVE-2015-0843 in the wild and no public exploit code.
Other vulnerabilities in yubiserver
Sources
Also known as DEBIAN-CVE-2015-0843, GHSA-x9xr-v9hc-3r27.