CVE-2026-33851 Improper Restriction of Operations within the Bounds of a Memory Buffer in joncampbell123 doslib

High 7.8 Published Updated

A buffer overflow in doslib allows attackers to execute arbitrary code or cause denial of service via improper memory bounds checking.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-33851?

CVE-2026-33851 is a high-severity memory corruption vulnerability in joncampbell123 doslib, published on 24 Mar 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in joncampbell123 doslib.This issue affects doslib: before doslib-20250729.

Weakness: CWE-119

Which versions are affected by CVE-2026-33851?

How do I fix CVE-2026-33851?

No fix has been published for CVE-2026-33851 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-2026-33851 being exploited?

There is no known exploitation of CVE-2026-33851 in the wild and no public exploit code.

Sources

Also known as GHSA-8mgp-29mj-v35j.

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