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Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability…

Priority MEDIUM 41CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-415 and the CVSS impact.

Summary

Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability in cJSON library that can result in Possible crash or RCE. This attack appear to be exploitable via Attacker must be able to force victim to print JSON data, depending on how cJSON library is used this could be either local or over a network. This vulnerability appears to have been fixed in 1.7.3.

Why it matters now

EPSS 0.01471 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*before 1.7.3VulnerableDaveGamble
  • cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:* Versions before 1.7.3 Vulnerable ·DaveGamble

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000216
  2. 2026-10-03 Alias added: GHSA-3g82-r8f2-r5vq

References

  • TI-2025-35424 cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the… CVSS 3.1CRITICAL 9.8
  • TI-2023-27613 cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c. CVSS 3.1HIGH 7.5
  • TI-2026-47533 cJSON JSON Patch Non-Atomic Application Destroys Data Before Validation CVSS 4.0MEDIUM 6.9
  • TI-2026-47532 cJSON cJSON_Compare Exponential Complexity Denial of Service CVSS 4.0HIGH 8.2
  • TI-2019-08871 cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments. CVSS 3.1CRITICAL 9.8
  • TI-2019-08870 cJSON before 1.7.11 allows out-of-bounds access, related to \x00 in a string literal. CVSS 3.1CRITICAL 9.8
See all 13 →

Sources