7.5

CVE-2023-50471: davegamble cjson NULL Pointer Dereference

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2023-50471UBUNTU-CVE-2023-50471DEBIAN-CVE-2023-50471
Published 14-12-2023Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2023-50471 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in davegamble cjson. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
1.52%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
MGASA-2024-0156OPENSUSE-SU-2024:0139-1OPENSUSE-SU-2024:13537-1RHSA-2025:9838USN-6784-1

Timeline

  1. 14-12-2023
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_InsertItemInArray at cJSON.c.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.52%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

0.00 pp

From 1.52% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.52%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Cjson

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • cjson< 1.7.17-r0
Davegamble1 product
Debian1 product
  • cjson< 1.7.10-1.1+deb10u2 | < 1.7.15-1+deb12u1 | < 1.7.17-1
Ubuntu1 product
  • cjson< 1.7.15-1ubuntu0.1~esm2

4 vendors · 4 products

References

16 links
Show all 16 references