Description
A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.
Published: 2026-09-10
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Thu, 10 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 10 Sep 2026 01:00:00 +0000

Type Values Removed Values Added
Description A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.
Title DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free
First Time appeared Davegamble
Davegamble cjson
Weaknesses CWE-119
CWE-416
CPEs cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*
Vendors & Products Davegamble
Davegamble cjson
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


Subscriptions

Davegamble Cjson
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-09-10T19:06:09.220Z

Reserved: 2026-09-09T16:21:04.414Z

Link: CVE-2026-87933

cve-icon Vulnrichment

Updated: 2026-09-10T18:13:18.876Z

cve-icon NVD

Status : Deferred

Published: 2026-09-10T01:16:35.650

Modified: 2026-09-10T20:17:31.073

Link: CVE-2026-87933

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-10T11:30:06Z

Weaknesses