How severe is CVE-2023-23088?

CVE-2023-23088 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-23088 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-23088?

CVE-2023-23088 affects Json-parser Project Json-parser. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-23088?

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

When was CVE-2023-23088 published?

CVE-2023-23088 was published on 2023-02-03 and last updated on 2026-06-17.

CVE-2023-23088

CVE-2023-23088 is a critical-severity vulnerability in Json-parser Project Json-parser with a CVSS 3.x base score of 9.8. 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Json-parser Project Json-parser
Published: 2023-02-03
Last modified: 2026-06-17

Description

Buffer OverFlow Vulnerability in Barenboim json-parser master and v1.1.0 fixed in v1.1.1 allows an attacker to execute arbitrary code via the json_value_parse function.

Frequently asked questions

What is CVE-2023-23088?: Buffer OverFlow Vulnerability in Barenboim json-parser master and v1.1.0 fixed in v1.1.1 allows an attacker to execute arbitrary code via the json_value_parse function.
How severe is CVE-2023-23088?: CVE-2023-23088 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-23088 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-23088?: CVE-2023-23088 affects Json-parser Project Json-parser. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-23088?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-23088 published?: CVE-2023-23088 was published on 2023-02-03 and last updated on 2026-06-17.

References

https://github.com/Barenboim/json-parser/issues/7

Affected products (1)

cpe:2.3:a:json-parser_project:json-parser:1.1.0:*:*:*:*:*:*:*

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