How severe is CVE-2023-39933?

CVE-2023-39933 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-39933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-39933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-39933 have an EU (EUVD) identifier?

Yes. CVE-2023-39933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-43631.

When was CVE-2023-39933 published?

CVE-2023-39933 was published on 2024-03-18 and last updated on 2026-06-17.

CVE-2023-39933

CVE-2023-39933 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. 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-434.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-43631
Weakness: CWE-434
Published: 2024-03-18
Last modified: 2026-06-17

Description

Insufficient verification vulnerability exists in Broadcast Mail CGI (pmc.exe) included in A.K.I Software's PMailServer/PMailServer2 products. If this vulnerability is exploited, a user who can upload files through the product may execute an arbitrary executable file with the web server's execution privilege.

Frequently asked questions

What is CVE-2023-39933?: Insufficient verification vulnerability exists in Broadcast Mail CGI (pmc.exe) included in A.K.I Software's PMailServer/PMailServer2 products. If this vulnerability is exploited, a user who can upload files through the product may execute an arbitrary executable file with the web server's execution privilege.
How severe is CVE-2023-39933?: CVE-2023-39933 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-39933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-39933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-39933 have an EU (EUVD) identifier?: Yes. CVE-2023-39933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-43631.
When was CVE-2023-39933 published?: CVE-2023-39933 was published on 2024-03-18 and last updated on 2026-06-17.

References

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