CVE-2023-27789
CVSS v3
7.5
HIGH
EPSS Score
1.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the cidr2cidr function at the cidr.c:178 endpoint.
Technical details
- Published
- 2023-03-16
Frequently asked questions
What is CVE-2023-27789?
An issue found in TCPprep v.4.4.3 allows a remote attacker to cause a denial of service via the cidr2cidr function at the cidr.c:178 endpoint.
Is CVE-2023-27789 actively exploited?
Active exploitation of CVE-2023-27789 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-27789?
CVE-2023-27789 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2023-27789 affecting your environment?
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