CVE-2023-53154: cjson_project cjson Out-of-bounds Read
CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-53154DEBIAN-CVE-2023-53154
Published 23-05-2025Last modified 03-11-2025
Vulnerability summary
CVE-2023-53154 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in cjson_project cjson. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.28%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 23-05-2025PublishedVulnerability first disclosed.
- 03-11-2025Last modifiedVulnerability information updated.
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 metrics
4 scores · 4 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSources4 sources · 2.9–5.5
- CVE.orgCNA2.9LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.28%
Chance of exploitation in the next 30 days
Percentile
19%
Versus all other CVEs
30-day change
+0.02 pp
From 0.26% on 19-09-2026
19-09-202619-10-2026
EPSS score0.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundCjson
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Cjson_project1 product
- cjson< 1.7.18
Debian1 product
- cjson< 1.7.15-1+deb12u3 | < 1.7.18-1
Ubuntu1 product
- cjson< 1.7.10-1.1ubuntu0.1~esm1 | < 1.7.15-1ubuntu0.1 | < 1.7.17-1ubuntu0.1~esm3
3 vendors · 3 products
