CVE-2021-43203

moderate-risk
Published 2021-11-09

In JetBrains Ktor before 1.6.4, nonce verification during the OAuth2 authentication process is implemented improperly.

Do I need to act?

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0.00% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Jetbrains

References (2)

Vendor Advisory https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/
Vendor Advisory https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021/
31
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal