CVE-2023-45613

Name: CVE-2023-45613
Creator: NVD / NIST
Published: 2023-10-09T11:15:11.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2023-45613 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. In JetBrains Ktor before 2.3.5 server certificates were not verified. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

In JetBrains Ktor before 2.3.5 server certificates were not verified

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.30%

21.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Jetbrains	Ktor	< 2.3.5

References

https://www.jetbrains.com/privacy-security/issues-fixed/Patch, Vendor Advisory
https://www.jetbrains.com/privacy-security/issues-fixed/Patch, Vendor Advisory

Timeline

Published: Oct 9, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-45613?

In JetBrains Ktor before 2.3.5 server certificates were not verified

How severe is CVE-2023-45613?

CVE-2023-45613 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2023-45613?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45613?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST