CVE-2026-86358 Memory corruption in Update Package Framework

Medium 6.5 Published Updated

An unauthenticated attacker with adjacent network access can exploit a stack-based buffer overflow to achieve remote code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-86358?

CVE-2026-86358 is a medium-severity memory corruption vulnerability in Dell Update Package Framework, published on 16 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Dell Update Package Framework, versions prior to 26.07.03, contains a Stack-based Buffer Overflow vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Remote execution.

Weakness: CWE-121

Which versions are affected by CVE-2026-86358?

It affects 1 product.

Products include Dell Update Package Framework.

How do I fix CVE-2026-86358?

No fix has been published for CVE-2026-86358 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-2026-86358 being exploited?

There is no known exploitation of CVE-2026-86358 in the wild and no public exploit code.

Sources

Also known as GHSA-4m5v-c85r-xxqw.

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