Vulnerability Report

CVE-2020-26558

Title: Intel Ac 9560 Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2020-26558.

CWE Category CWE-287
Published Date May 24, 2021
Modified Date Nov 04, 2025
Exploit Status Not Found
Score 4.2 CVSS v3.1
Exploit Probability (EPSS)
0.03%

Vulnerability Summary

CVE-2020-26558: Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time.

Impacted Vendors

I
intel 15
B
bluetooth 1

Reference Links

https://kb.cert.org/vuls/id/799380 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/ https://security.gentoo.org/glsa/202209-16 https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ https://www.debian.org/security/2021/dsa-4951 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html https://kb.cert.org/vuls/id/799380 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.debian.org/debian-lts-announce/2021/06/msg00022.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NSS6CTGE4UGTJLCOZOASDR3T3SLL6QJZ/ https://security.gentoo.org/glsa/202209-16 https://www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/ https://www.debian.org/security/2021/dsa-4951 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00517.html https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00520.html https://www.kb.cert.org/vuls/id/799380
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.2
Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.3
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:A/AC:M/Au:N/C:P/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-26558 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector ADJACENT_NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Stack

No specific products linked.