CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2021-27342
Medium (5.9) in dlink dir-842e firmware. EPSS 4.6% chance of exploitation in the next 30 days.
An authentication brute-force protection mechanism bypass in telnetd in D-Link Router model DIR-842 firmware version 3.0.2 allows a remote attacker to circumvent the anti-brute-force cool-down delay period via a timing-based side-channel attack
Severity
- EPSS
- 4.6% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
- CWE
- CWE-203
- Published
- Modified
- Record from
- the NVD, synced
Affected
- dlink:dir-842e_firmware
References
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.html
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.py
- https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10225
- https://blog.whtaguy.com/2021/05/d-link-router-cve-2021-27342.html
- https://github.com/guywhataguy/D-Link-CVE-2021-27342-exploit/blob/main/dlink-telnet-exploit-CVE-2021-27342.py