CVE-2020-25661

Name: CVE-2020-25661
Creator: NVD / NIST
Published: 2020-11-05T21:15:12.627+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.76%

Last modified Jun 17, 2026

CVE-2020-25661 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

Description

A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.76%

75.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Enterprise Linux	8.3

References

https://access.redhat.com/security/cve/CVE-2020-12351Mitigation, Vendor Advisory
https://access.redhat.com/security/vulnerabilities/BleedingToothVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25661Issue Tracking, Mitigation, Vendor Advisory
https://access.redhat.com/security/cve/CVE-2020-12351Mitigation, Vendor Advisory
https://access.redhat.com/security/vulnerabilities/BleedingToothVendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25661Issue Tracking, Mitigation, Vendor Advisory

Timeline

Published: Nov 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-25661?

How severe is CVE-2020-25661?

CVE-2020-25661 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2020-25661?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-25661?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST