CVE-2021-32292
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-32292- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-32292- Updated
- 2026-11-02
EUVDEUVD-2021-19147 No score
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.
- Record
EUVD-2021-19147- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gf2h-qrq9-jg6v
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the...
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the function parseit located in json_parse.c. It allows an attacker to cause code Execution.
- Record
GHSA-gf2h-qrq9-jg6v- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVAZL-28060
CVE-2021-32292 affecting package json-c for versions less than 0.15-2
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.
- Record
AZL-28060- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-32292- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Show 7 moreShow less
OSVDEBIAN-CVE-2021-32292
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.
- Record
DEBIAN-CVE-2021-32292- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2023-1571
json-c security update
JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects.
Security Fix(es):
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the function parseit located in json_parse.c. It allows an attacker to cause code Execution.(CVE-2021-32292)
- Record
OESA-2023-1571- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2023-1572
json-c security update
JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects.
Security Fix(es):
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the function parseit located in json_parse.c. It allows an attacker to cause code Execution.(CVE-2021-32292)
- Record
OESA-2023-1572- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVOESA-2023-1573
json-c security update
JSON-C implements a reference counting object model that allows you to easily construct JSON objects in C, output them as JSON formatted strings and parse JSON formatted strings back into the C representation of JSON objects.
Security Fix(es):
An issue was discovered in json-c through 0.15-20200726. A stack-buffer-overflow exists in the function parseit located in json_parse.c. It allows an attacker to cause code Execution.(CVE-2021-32292)
- Record
OESA-2023-1573- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-32292
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.
- Record
UBUNTU-CVE-2021-32292- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBIT-json-c-2021-32292 No score
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.
- Record
BIT-json-c-2021-32292- Updated
- 2026-11-02
OSVUSN-6310-1 No score
json-c vulnerability
It was discovered that json-c incorrectly handled certain JSON files. An attacker could possibly use this issue to cause a crash or execute arbitrary code.
- Record
USN-6310-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
json-cAzure Linux:2 |
before 0.15-2 | 0.15-2 |
json-cBitnami |
0.15-20200726.0 to 0.15-20200726.0 | None known |
json-cDebian:12 |
before 0.16-1 | 0.16-1 |
json-cDebian:13 |
before 0.16-1 | 0.16-1 |
json-cDebian:14 |
before 0.16-1 | 0.16-1 |
json-cDebian:11 |
before 0.15-2+deb11u1, plus listed versions 0.15-2 |
0.15-2+deb11u1 |
json-copenEuler:20.03-LTS-SP1 |
before 0.15-6.oe1 | 0.15-6.oe1 |
json-copenEuler:20.03-LTS-SP3 |
before 0.15-6.oe1 | 0.15-6.oe1 |
json-copenEuler:22.03-LTS |
before 0.15-6.oe2203 | 0.15-6.oe2203 |
json-cUbuntu:22.04:LTS |
before 0.15-3~ubuntu1.22.04.2, plus listed versions 0.15-2build20.15-2build30.15-2build40.15-3~ubuntu1.22.04.1 |
0.15-3~ubuntu1.22.04.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-32292 is a critical vulnerability (CVSS 9.8) in Json-c, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 71st percentile. Fixed in json-c 0.15-2.
References
github.com/json-c/json-c/issues/654
debian.org/security/2023/dsa-5486
security.netapp.com/advisory/ntap-20230929-0010
cert-portal.siemens.com/productcert/html/ssa-398330.html
nvd.nist.gov/vuln/detail/CVE-2021-32292
Show 7 moreShow less
security-tracker.debian.org/tracker/CVE-2021-32292
openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1571
ubuntu.com/security/CVE-2021-32292
cve.org/CVERecord?id=CVE-2021-32292