CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2021-40113
Critical (9.8) in cisco. EPSS 4.6% chance of exploitation in the next 30 days.
Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical Network Terminal (ONT) could allow an unauthenticated, remote attacker to perform the following actions: Log in with a default credential if the Telnet protocol is enabled Perform command injection Modify the configuration For more information about these vulnerabilities, see the Details section of this advisory.
Severity
- EPSS
- 4.6% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-78, CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- cisco:catalyst_pon_switch_cgp-ont-1p_firmware
- cisco:catalyst_pon_switch_cgp-ont-4p_firmware
- cisco:catalyst_pon_switch_cgp-ont-4pv_firmware
- cisco:catalyst_pon_switch_cgp-ont-4pvc_firmware
- cisco:catalyst_pon_switch_cgp-ont-4tvcw_firmware