Medium severity · published Feb 3, 2021
CVE-2021-25763
In JetBrains Ktor before 1.4.2, weak cipher suites were enabled by default
5.3
CVSS
0.5%
EPSS
No
On KEV
Description
In JetBrains Ktor before 1.4.2, weak cipher suites were enabled by default.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KT
Ktor · Jetbrains
before 1.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-25763
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-25763
Product
https://blog.jetbrains.com
Vendor Advisory
https://blog.jetbrains.com/blog/2021/02/03/jetbrains-security-bulletin-q4-2020/
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