How severe is CVE-2023-46586?

CVE-2023-46586 has a CVSS 3.x base score of 9.1, 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 none, and availability high.

Is CVE-2023-46586 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-46586?

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.

Does CVE-2023-46586 have an EU (EUVD) identifier?

Yes. CVE-2023-46586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50790.

When was CVE-2023-46586 published?

CVE-2023-46586 was published on 2024-10-09 and last updated on 2026-06-17.

CVE-2023-46586

CVE-2023-46586 is a critical-severity vulnerability with a CVSS 3.x base score of 9.1. 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-50790
Weakness: CWE-119
Published: 2024-10-09
Last modified: 2026-06-17

Description

cgi.c in weborf .0.17, 0.18, 0.19, and 0.20 (before 1.0) lacks '\0' termination of the path for CGI scripts because strncpy is misused.

Frequently asked questions

What is CVE-2023-46586?: cgi.c in weborf .0.17, 0.18, 0.19, and 0.20 (before 1.0) lacks '\0' termination of the path for CGI scripts because strncpy is misused.
How severe is CVE-2023-46586?: CVE-2023-46586 has a CVSS 3.x base score of 9.1, 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 none, and availability high.
Is CVE-2023-46586 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-46586?: 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.
Does CVE-2023-46586 have an EU (EUVD) identifier?: Yes. CVE-2023-46586 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-50790.
When was CVE-2023-46586 published?: CVE-2023-46586 was published on 2024-10-09 and last updated on 2026-06-17.

References

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
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CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

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