What is CVE-2022-42227?

CVE-2022-42227 is a high-severity vulnerability in Jsonlint Project C\+\+, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-10-19.

How severe is CVE-2022-42227?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-42227 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Jsonlint Project C\+\+

CVE-2022-42227

jsonlint 1.0 is vulnerable to heap-buffer-overflow via /home/hjsz/jsonlint/src/lexer.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (57.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Jsonlint_project Jsonlint_c\+\+ — versions 1.0
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-42227?: CVE-2022-42227 is a high-severity vulnerability in Jsonlint Project C\+\+, classified under Out-of-bounds Write. CVSS score: 7.5/10. Published 2022-10-19.
How severe is CVE-2022-42227?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-42227 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.