CVE-2026-89172 Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms

Medium 5.6 Published Updated

Attackers can exploit physical side channels in Microchip cryptographic algorithms to potentially disclose sensitive data.

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-2026-89172?

CVE-2026-89172 is a medium-severity vulnerability in Microchip AN1044, published on 12 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.

This issue affects AN1044: through A; AN953: through A; SW300052: through 2.6.

Weakness: CWE-1300

Which versions are affected by CVE-2026-89172?

How do I fix CVE-2026-89172?

No fix has been published for CVE-2026-89172 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-89172 being exploited?

There is no known exploitation of CVE-2026-89172 in the wild and no public exploit code.

Sources

Also known as GHSA-pxq3-m9x7-5w4m.

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