Is CVE-2020-27640 in the CISA KEV catalog?

No. CVE-2020-27640 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-27640?

CVE-2020-27640 has a CVSS v3 base score of 8.1 (HIGH).

What is the EPSS score for CVE-2020-27640?

CVE-2020-27640 has an EPSS score of 0.51% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-27640?

Upgrade mivoice 6930 firmware to 1.5.3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2020-27640

HIGH

8.1

CVSS v3

NVD

Description

The Bluetooth handset of Mitel MiVoice 6940 and 6930 MiNet phones with firmware before 1.5.3 could allow an unauthenticated attacker within Bluetooth range to pair a rogue Bluetooth device when a phone handset loses connection, due to an improper pairing mechanism. A successful exploit could allow an attacker to eavesdrop on conversations.

How to fix

Remediation Available

mivoice 6930 firmwareNVD

Affected:< 1.5.3Fixed in:1.5.3CVE-2020-27640derived from NVD

mivoice 6940 firmwareNVD

Affected:< 1.5.3Fixed in:1.5.3CVE-2020-27640derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.51%probability of exploitation in 30 days

40thpercentile

Low risk: more likely to be exploited than 40% of all known CVEs.

References

Vendor Advisory1

mitel.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.