CVE-2024-31755

Exp

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.

Published: 2024-04-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-31755 is rated Exploit Available (59.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.65%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-31755

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-31755

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.71% 0.65% -2.06%
2 2026-06-04 2.50% 2.71% +0.21%
3 2026-05-15 — 2.50% —

Full EPSS history (27 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-31755

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.6 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 4.7 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-31755

OS Trackers for CVE-2024-31755

vendor priority summary link
alpine — CVE-2024-31755: 1 source package rows (cjson); 5 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 5. https://security.alpinelinux.org/vuln/CVE-2024-31755
debian not yet assigned CVE-2024-31755 not yet assigned priority: Debian including 1 source packages (cjson), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-31755
redhat medium — https://access.redhat.com/security/cve/CVE-2024-31755
suse high — https://www.suse.com/security/cve/CVE-2024-31755/
ubuntu medium CVE-2024-31755 medium priority: Ubuntu including 1 source packages (cjson), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): not-affected 4, released 4. https://ubuntu.com/security/CVE-2024-31755

Affected software / configurations for CVE-2024-31755

Vendor Product Version Raw CPE
cjson_project cjson 1.7.17 cpe:2.3:a:cjson_project:cjson:1.7.17:*:*:*:*:*:*:*

References for CVE-2024-31755

URL Tags
https://github.com/DaveGamble/cJSON/issues/839 Exploit Issue Tracking Vendor Advisory
cvelogic Threat Intelligence