VulnerabilityModified
CVE-2023-53154
parse_string in cJSON before 1.7.18 has a heap-based buffer over-read via {"1":1, with no trailing newline if cJSON_ParseWithLength is called.
MEDIUM 5.5EPSS 0.26%
Does this matter?
Lower severity and a low EPSS score (0.26%). Track it; it rarely justifies an emergency change on its own.
Description
parse_string in cJSON before 1.7.18 has a heap-based buffer over-read via {"1":1, with no trailing newline if cJSON_ParseWithLength is called.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- cjson project/cjson
- Source
- cve@mitre.org
References
- https://github.com/DaveGamble/cJSON/compare/v1.7.17...v1.7.18Release Notes
- https://github.com/DaveGamble/cJSON/issues/800Exploit, Issue Tracking, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2025/06/msg00014.html
- https://github.com/DaveGamble/cJSON/issues/800Exploit, Issue Tracking, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.