How severe is CVE-2023-45613?

CVE-2023-45613 has a CVSS 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-45613 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45613?

CVE-2023-45613 affects Jetbrains Ktor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45613?

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

When was CVE-2023-45613 published?

CVE-2023-45613 was published on 2023-10-09 and last updated on 2026-06-17.

CVE-2023-45613

CVE-2023-45613 is a medium-severity vulnerability in Jetbrains Ktor with a CVSS 3.x base score of 6.8. 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-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.8)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Jetbrains Ktor
Published: 2023-10-09
Last modified: 2026-06-17

Description

In JetBrains Ktor before 2.3.5 server certificates were not verified

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 3.x base score of 6.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-45613 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45613?: CVE-2023-45613 affects Jetbrains Ktor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-45613 published?: CVE-2023-45613 was published on 2023-10-09 and last updated on 2026-06-17.

References

https://www.jetbrains.com/privacy-security/issues-fixed/

Affected products (1)

cpe:2.3:a:jetbrains:ktor:*:*:*:*:*:*:*:*

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