CVE-2020-37166

6.9 mediumEPSS 0.2%

Medium (6.9) in celestialsoftware absolutetelnet. EPSS 0.2% chance of exploitation in the next 30 days.

AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

5.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2026-02-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

celestialsoftware:absolutetelnet

References

https://www.celestialsoftware.net/
https://www.exploit-db.com/exploits/48010
https://www.vulncheck.com/advisories/absolutetelnet-sshusername-denial-of-service

Check your stack JSON