How severe is CVE-2018-1000216?

CVE-2018-1000216 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1000216 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000216?

CVE-2018-1000216 affects Davegamble Cjson. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000216?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-1000216 published?

CVE-2018-1000216 was published on 2018-08-20 and last updated on 2026-06-17.

CVE-2018-1000216

CVE-2018-1000216 is a high-severity vulnerability in Davegamble Cjson with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-415.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-415
Affected product: Davegamble Cjson
Published: 2018-08-20
Last modified: 2026-06-17

Description

Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability in cJSON library that can result in Possible crash or RCE. This attack appear to be exploitable via Attacker must be able to force victim to print JSON data, depending on how cJSON library is used this could be either local or over a network. This vulnerability appears to have been fixed in 1.7.3.

Frequently asked questions

What is CVE-2018-1000216?: Dave Gamble cJSON version 1.7.2 and earlier contains a CWE-415: Double Free vulnerability in cJSON library that can result in Possible crash or RCE. This attack appear to be exploitable via Attacker must be able to force victim to print JSON data, depending on how cJSON library is used this could be either local or over a network. This vulnerability appears to have been fixed in 1.7.3.
How severe is CVE-2018-1000216?: CVE-2018-1000216 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1000216 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000216?: CVE-2018-1000216 affects Davegamble Cjson. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000216?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-1000216 published?: CVE-2018-1000216 was published on 2018-08-20 and last updated on 2026-06-17.

References

https://github.com/DaveGamble/cJSON/issues/241

Affected products (1)

cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:*

More vulnerabilities in Davegamble Cjson

CVE-2025-57052 — Critical (CVSS 9.8): cJSON 1.5.0 through 1.7.18 allows out-of-bounds access via the decode_array_index_from_pointer function in…
CVE-2019-11835 — Critical (CVSS 9.8): cJSON before 1.7.11 allows out-of-bounds access, related to multiline comments.
CVE-2019-11834 — Critical (CVSS 9.8): cJSON before 1.7.11 allows out-of-bounds access, related to \x00 in a string literal.
CVE-2016-10749 — Critical (CVSS 9.8): parse_string in cJSON.c in cJSON before 2016-10-02 has a buffer over-read, as demonstrated by a string that begins with…
CVE-2018-1000217 — Critical (CVSS 9.8): Dave Gamble cJSON version 1.7.3 and earlier contains a CWE-416: Use After Free vulnerability in cJSON library that can…
CVE-2023-50472 — High (CVSS 7.5): cJSON v1.7.16 was discovered to contain a segmentation violation via the function cJSON_SetValuestring at cJSON.c.

All CVEs affecting Davegamble Cjson →

Other CWE-415 (Double Free) vulnerabilities

CVE-2018-0101 — Critical (CVSS 10.0): A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA)…
CVE-2026-8925 — Critical (CVSS 9.8): The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing…
CVE-2020-37239 — Critical (CVSS 9.8): libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety…
CVE-2026-43011 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: net/x25: Fix potential double free of skb When…
CVE-2026-31609 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: avoid double-free in…
CVE-2026-31608 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: server: avoid double-free in…

Browse all CWE-415 (Double Free) vulnerabilities →