How severe is CVE-2023-40747?

CVE-2023-40747 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 high, integrity none, and availability none.

Is CVE-2023-40747 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-40747?

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.

Does CVE-2023-40747 have an EU (EUVD) identifier?

Yes. CVE-2023-40747 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-45300.

When was CVE-2023-40747 published?

CVE-2023-40747 was published on 2024-03-18 and last updated on 2026-06-17.

CVE-2023-40747

CVE-2023-40747 is a high-severity vulnerability 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-45300
Weakness: CWE-22
Published: 2024-03-18
Last modified: 2026-06-17

Description

Directory traversal vulnerability exists in A.K.I Software's PMailServer/PMailServer2 products' CGIs included in Internal Simple Webserver. If this vulnerability is exploited, a remote attacker may access arbitrary files outside DocumentRoot.

Frequently asked questions

What is CVE-2023-40747?: Directory traversal vulnerability exists in A.K.I Software's PMailServer/PMailServer2 products' CGIs included in Internal Simple Webserver. If this vulnerability is exploited, a remote attacker may access arbitrary files outside DocumentRoot.
How severe is CVE-2023-40747?: CVE-2023-40747 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 high, integrity none, and availability none.
Is CVE-2023-40747 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-40747?: 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.
Does CVE-2023-40747 have an EU (EUVD) identifier?: Yes. CVE-2023-40747 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-45300.
When was CVE-2023-40747 published?: CVE-2023-40747 was published on 2024-03-18 and last updated on 2026-06-17.

References

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