CVE-2022-45496 Memory corruption in n/a

High 8.8 Published 3 Feb 2023 Updated 26 Mar 2025

A buffer overflow in the sheredom json library allows attackers to execute arbitrary code and escalate privileges.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-45496?

CVE-2022-45496 is a high-severity memory corruption vulnerability in n/a, published on 3 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Buffer overflow vulnerability in function json_parse_string in sheredom json.h before commit 0825301a07cbf51653882bf2b153cc81fdadf41 (November 14, 2022) allows attackers to code arbitrary code and gain escalated privileges.

Weakness: CWE-787

Which versions are affected by CVE-2022-45496?

It affects 1 product.

Products include Json.h Project Json.h.

How do I fix CVE-2022-45496?

No fix has been published for CVE-2022-45496 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-2022-45496 being exploited?

There is no known exploitation of CVE-2022-45496 in the wild and no public exploit code.

Sources

Also known as AZL-74523, GHSA-29hf-wrjw-2f28.