CVE-2026-108985 Memory corruption in libnfs
An out-of-bounds write in libnfs ZDR decoding allows attackers to execute arbitrary code or cause denial of service via crafted NFS responses.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-108985?
CVE-2026-108985 is a high-severity memory corruption vulnerability in sahlberg libnfs, published on 12 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
ZDR decoding in libnfs through 6.0.2 before 7613236 has an out-of-bounds write related to lib/libnfs-zdr.c with libnfs_zdr_bytes(), libnfs_zdr_string(), and libnfs_zdr_array(). The caller-supplied maxsize value is not honored.
Weakness: CWE-787
Which versions are affected by CVE-2026-108985?
How do I fix CVE-2026-108985?
No fix has been published for CVE-2026-108985 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-2026-108985 being exploited?
There is no known exploitation of CVE-2026-108985 in the wild and no public exploit code.
Sources
Also known as AZL-107960, BELL-CVE-2026-108985, DEBIAN-CVE-2026-108985, GHSA-vhww-3hg5-5f37, UBUNTU-CVE-2026-108985.