🛡️ CVE-2024-31755 — cjson

🟠 CVSS 7.6 — High ⚠️ Exploit Public CWE-476 NVD

7.6

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

cJSON v1.7.17 was discovered to contain a segmentation violation, which can trigger through the second parameter of function cJSON_SetValuestring at cJSON.c.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability high.

Weakness class

CVE-2024-31755 is classified as CWE-476: NULL Pointer Dereference. A pointer that can be null is used without a check, crashing the process.

Affected software

CVE-2024-31755 is recorded against 1 package.

cjson

Timeline and source

Published on 26 April 2024 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com
github.com

CVE-2024-31755 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity HIGH

CVSS Score 7.6

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H

CWE CWE-476

Public Exploit ⚠️ Yes

Source NVD

Published 2024-04-26

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
cjson	—	—

References

Exploit, Issue Tracking, Vendor Advisory https://github.com/DaveGamble/cJSON/issues/839

🔗 NVD 🔗 Mitre

Similar Threats

Exploit Protection

Are you running cjson?

CVE-2024-31755 carries CVSS 7.6 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2024-31755 →

No credit card required · Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.