CVE-2026-42482 Memory corruption in n/a
A stack-based buffer overflow in hashcat allows attackers to execute arbitrary code or cause denial of service via crafted rule files or long password candidates.
- 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-2026-42482?
CVE-2026-42482 is a high-severity memory corruption vulnerability in n/a, published on 1 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A stack-based buffer overflow in mangle_to_hex_lower() and mangle_to_hex_upper() in src/rp_cpu.c in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted rule file, or via the -j or -k rule options used with password candidates of 128 or more characters. The vulnerability is caused by a bounds check that fails to account for the 2x expansion that occurs when password bytes are converted to hexadecimal.
Which versions are affected by CVE-2026-42482?
It affects 1 product.
Products include Hashcat Hashcat.
How do I fix CVE-2026-42482?
No fix has been published for CVE-2026-42482 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-42482 being exploited?
There is no known exploitation of CVE-2026-42482 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2026-42482, GHSA-vrww-7rmp-3xrm, UBUNTU-CVE-2026-42482.