CVE-2021-32292

Exp

An issue was discovered in json-c from 20200420 (post 0.14 unreleased code) through 0.15-20200726. A stack-buffer-overflow exists in the auxiliary sample program json_parse which is located in the function parseit.

Published: 2023-08-22 Last update: 2025-06-25 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-32292 is rated High Exploit Risk (67.8/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.17%). 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-2021-32292

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

Exploit prediction scoring system (EPSS) score for CVE-2021-32292

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 2026-04-19 0.13% 0.17% +0.04%
2 2025-12-17 0.17% 0.13% -0.04%
3 2025-11-21 — 0.17% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-32292

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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:N)
No account or special rights needed—anonymous or random user is enough.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2021-32292

OS Trackers for CVE-2021-32292

vendor priority summary link
alpine — CVE-2021-32292: 1 source package rows (json-c); 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-2021-32292
debian not yet assigned CVE-2021-32292 not yet assigned priority: Debian including 1 source packages (json-c), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2021-32292
gentoo normal CVE-2021-32292: 1 GLSA(s) (202408-08), 1 atom(s) (dev-libs/json-c); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-32292
redhat — — https://access.redhat.com/security/cve/CVE-2021-32292
ubuntu medium CVE-2021-32292 medium priority: Ubuntu including 1 source packages (json-c), 7 status rows across 7 suites (bionic, focal, jammy, lunar, trusty, upstream, xenial): not-affected 5, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2021-32292

Affected software / configurations for CVE-2021-32292

Vendor Product Version Raw CPE
netapp active_iq_unified_manager — cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
json-c json-c 0.15-20200726 cpe:2.3:a:json-c:json-c:0.15-20200726:*:*:*:*:*:*:*

References for CVE-2021-32292

cvelogic Threat Intelligence