CVE-2022-25836: Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may permit an unauthenticated

Routine

HIGH 7.5UPGRADE

CVE-2022-25836 is a high-severity flaw (CVSS 7.5) affecting bluetooth core specification. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may permit an unauthenticated MITM to acquire credentials with two pairing devices via adjacent access when the MITM negotiates Legacy Passkey Pairing with the pairing Initiator and Secure Connections Passkey Pairing with the pairing Responder and brute forces the Passkey entered by the user into the Initiator. The MITM attacker can use the identified Passkey value to

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 70%)
CISA exploited list	No
Weakness	CWE-294
Published	2022-12-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: bluetooth

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-12-12 04:15 UTCPublished CVE record published
2026-06-17 04:34 UTCUpdated Record last modified

bluetooth bluetooth core specification UPGRADE

Affected: >= 4.0 and <= 5.3

Fixed in: newer than 5.3

Safe to downgrade to: a release before 4.0

1. Check installed version

apt-cache policy bluetooth-core-specification || rpm -q bluetooth-core-specification || bluetooth-core-specification --version

2. UPGRADE to newer than 5.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bluetooth-core-specification

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bluetooth-core-specification

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0 (Debian / Ubuntu)

apt-cache madison bluetooth-core-specification sudo apt install bluetooth-core-specification=<VERSION_BEFORE_4.0> sudo apt-mark hold bluetooth-core-specification

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list bluetooth-core-specification sudo dnf downgrade bluetooth-core-specification-<VERSION_BEFORE_4.0> sudo dnf versionlock add bluetooth-core-specification

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-25836?

bluetooth core specification: upgrade to newer than 5.3. Exact commands for each OS are on this page.

Is CVE-2022-25836 being exploited?

CVE-2022-25836 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-25836 affect?

CVE-2022-25836 affects bluetooth core specification. Severity is high (CVSS 7.5). Bluetooth® Low Energy Pairing in Bluetooth Core Specification v4.0 through v5.3 may permit an unauthenticated MITM to acquire credentials with two pairing devices via adjacent access when the MITM negotiates Legacy Passkey Pairing with the

How urgent is CVE-2022-25836?

Priority 34/100. High severity

Software pages

Bluetooth vulnerabilities

Related CVEs

CVE-2023-24023 MEDIUM 6.8 UPGRADE UPGRADE Bluetooth BR/EDR devices with Secure Simple Pairing and Secure Connections pairing in Bluetooth Core Specifica
CVE-2022-25837 HIGH 7.5 UPGRADE Bluetooth® Pairing in Bluetooth Core Specification v1.0B through v5.3 may permit an unauthenticated MITM to ac
CVE-2022-24695 MEDIUM 4.3 UPGRADE Bluetooth Classic in Bluetooth Core Specification through 5.3 does not properly conceal device information for
CVE-2020-35473 MEDIUM 4.3 UPGRADE An information leakage vulnerability in the Bluetooth Low Energy advertisement scan response in Bluetooth Core

References

← Back to latest CVEs