How severe is CVE-2019-1010239?

CVE-2019-1010239 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-1010239 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-1010239?

CVE-2019-1010239 primarily affects Davegamble Cjson. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-1010239?

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-2019-1010239 published?

CVE-2019-1010239 was published on 2019-07-19 and last updated on 2026-06-17.

CVE-2019-1010239

CVE-2019-1010239 is a high-severity vulnerability in Davegamble Cjson with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Davegamble Cjson
Published: 2019-07-19
Last modified: 2026-06-17

Description

DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_GetObjectItemCaseSensitive() function. The attack vector is: crafted json file. The fixed version is: 1.7.9 and later.

Frequently asked questions

What is CVE-2019-1010239?: DaveGamble/cJSON cJSON 1.7.8 is affected by: Improper Check for Unusual or Exceptional Conditions. The impact is: Null dereference, so attack can cause denial of service. The component is: cJSON_GetObjectItemCaseSensitive() function. The attack vector is: crafted json file. The fixed version is: 1.7.9 and later.
How severe is CVE-2019-1010239?: CVE-2019-1010239 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-1010239 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-1010239?: CVE-2019-1010239 primarily affects Davegamble Cjson. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-1010239?: 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-2019-1010239 published?: CVE-2019-1010239 was published on 2019-07-19 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:davegamble:cjson:1.7.8:*:*:*:*:*:*:*
cpe:2.3:a:oracle:timesten_in-memory_database:*:*:*:*:*:*:*:*

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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…
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