CVE-2023-45239
CVSS v3
9.8
CRITICAL
EPSS Score
1.9 %
exploit probability, as of 2026-10-04
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.
Technical details
- Published
- 2023-10-06
Frequently asked questions
What is CVE-2023-45239?
A lack of input validation exists in tac_plus prior to commit 4fdf178 which, when pre or post auth commands are enabled, allows an attacker who can control the username, rem-addr, or NAC address sent to tac_plus to inject shell commands and gain remote code execution on the tac_plus server.
Is CVE-2023-45239 actively exploited?
Active exploitation of CVE-2023-45239 has not been confirmed. Its EPSS score was 1.9% on 2026-10-04, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-45239?
CVE-2023-45239 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2023-45239 affecting your environment?
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