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CVE-2022-45494

25
FAUCET Score

CVE-2022-45494 is a buffer overflow vulnerability in the json_parse_object function of the sheredom json.h library, affecting versions prior to commit 0825301a07cbf51653882bf2b153cc81fdadf41. This vulnerability carries a high CVSS score of 7.8, indicating a significant risk where an attacker could execute arbitrary code and gain escalated privileges, requiring user interaction and local access. While severe, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2022-11-14CPE matchmatch criteria
cpe:2.3:a:json.h_project:json.h:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 33rd percentile among its peer group of 11,616 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / hyrathon/trophies/security/advisories/GHSA-wvpq-p7pp-cj6m
ExploitThird Party Advisory
github.com / sheredom/json.h
ProductThird Party Advisory
github.com / sheredom/json.h/issues/93
Issue TrackingPatchThird Party Advisory
github.com / sheredom/json.h/issues/97
Issue TrackingPatchThird Party Advisory