Vulnerability · Published May 23, 2025 · Assigned by mitre
CVE-2023-53154
Low 2.9
In plain English
A low-severity out-of-bounds read in cJSON from cJSON project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)2.9Low
Exploit odds (30 days)0.3%top 79.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | cjson | 1.7.15-1+deb12u3 | DEBIAN-CVE-2023-53154 |
| Debian:13 | cjson | 1.7.18-1 | DEBIAN-CVE-2023-53154 |
| Debian:14 | cjson | 1.7.18-1 | DEBIAN-CVE-2023-53154 |
| Ubuntu:22.04:LTS | cjson | 1.7.15-1ubuntu0.1 | USN-7973-1 |
| Ubuntu:22.04:LTS | cjson | 1.7.15-1ubuntu0.1 | UBUNTU-CVE-2023-53154 |
| Ubuntu:25.10 | cjson | 1.7.18-3.1ubuntu0.1 | USN-7973-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| cJSON project | cJSON | 0 – before 1.7.18 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L