How severe is CVE-2023-50432?

CVE-2023-50432 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-50432 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-50432?

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

Does CVE-2023-50432 have an EU (EUVD) identifier?

Yes. CVE-2023-50432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55224.

When was CVE-2023-50432 published?

CVE-2023-50432 was published on 2024-04-29 and last updated on 2026-06-17.

CVE-2023-50432

CVE-2023-50432 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-55224
Weakness: CWE-476
Published: 2024-04-29
Last modified: 2026-06-17

Description

simple-dhcp-server through ec976d2 allows remote attackers to cause a denial of service (daemon crash) by sending a DHCP packet without any option fields, which causes free_packet in dhcp_packet.c to dereference a NULL pointer.

Frequently asked questions

What is CVE-2023-50432?: simple-dhcp-server through ec976d2 allows remote attackers to cause a denial of service (daemon crash) by sending a DHCP packet without any option fields, which causes free_packet in dhcp_packet.c to dereference a NULL pointer.
How severe is CVE-2023-50432?: CVE-2023-50432 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-50432 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-50432?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-50432 have an EU (EUVD) identifier?: Yes. CVE-2023-50432 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-55224.
When was CVE-2023-50432 published?: CVE-2023-50432 was published on 2024-04-29 and last updated on 2026-06-17.

References

https://papers.mathyvanhoef.com/esorics2024.pdf

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