CVE-2022-45494

7.8 highEPSS 0.4%

High (7.8) in json.h project json.h. EPSS 0.4% chance of exploitation in the next 30 days.

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

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 35% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2023-01-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

json.h_project:json.h

References

https://github.com/hyrathon/trophies/security/advisories/GHSA-wvpq-p7pp-cj6m
https://github.com/sheredom/json.h
https://github.com/sheredom/json.h/issues/93
https://github.com/sheredom/json.h/issues/97
https://github.com/hyrathon/trophies/security/advisories/GHSA-wvpq-p7pp-cj6m

Check your stack JSON