CVE-2019-19148

9.8 criticalEPSS 7.9%

Critical (9.8) in tellabs optical line terminal 1150 firmware. EPSS 7.9% chance of exploitation in the next 30 days.

Tellabs Optical Line Terminal (OLT) 1150 devices allow Remote Command Execution via the -l option to TELNET or SSH. Tellabs has addressed this issue in the SR30.1 and SR31.1 release on February 18, 2020.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 7.9% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
CWE: CWE-78
Published: 2020-03-20
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

tellabs:optical_line_terminal_1150_firmware

References

https://docs.tellabs.com/articles/#%21vulnerability-response/cve-2019-19148
https://github.com/ellwoodthewood/tellabs_rce
https://docs.tellabs.com/articles/#%21vulnerability-response/cve-2019-19148
https://github.com/ellwoodthewood/tellabs_rce

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