CVE-2020-13617
The Web UI component of Mitel MiVoice 6800 and 6900 series SIP Phones with firmware before 5.1.0.SP5 could allow an unauthenticated attacker to expose sensitive information due to improper memory handling during failed login attempts.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Web UI component of Mitel MiVoice 6800 and 6900 series SIP Phones with firmware before 5.1.0.SP5 could allow an unauthenticated attacker to expose sensitive information due to improper memory handling during failed login attempts.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.33% probability · 71th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-307
- Affected
- mitel/6863 firmware · mitel/6865 firmware · mitel/6867 firmware · mitel/6869 firmware · mitel/6873 firmware · mitel/6940 firmware · mitel/6970 firmware · mitel/6930 firmware · mitel/6920 firmware · mitel/6905 firmware · mitel/6910 firmware
- Source
- cve@mitre.org
EPSS 1.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://www.mitel.com/support/security-advisoriesVendor Advisory
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0007Vendor Advisory
- https://www.mitel.com/support/security-advisoriesVendor Advisory
- https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-20-0007Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.