How severe is CVE-2020-26555?

CVE-2020-26555 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-26555 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26555?

CVE-2020-26555 primarily affects Bluetooth Bluetooth Core Specification. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-26555?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-26555 published?

CVE-2020-26555 was published on 2021-05-24 and last updated on 2026-06-17.

CVE-2020-26555

CVE-2020-26555 is a medium-severity vulnerability in Bluetooth Bluetooth Core Specification with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.8
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Bluetooth Bluetooth Core Specification
Published: 2021-05-24
Last modified: 2026-06-17

Description

Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.

Frequently asked questions

What is CVE-2020-26555?: Bluetooth legacy BR/EDR PIN code pairing in Bluetooth Core Specification 1.0B through 5.2 may permit an unauthenticated nearby device to spoof the BD_ADDR of the peer device to complete pairing without knowledge of the PIN.
How severe is CVE-2020-26555?: CVE-2020-26555 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-26555 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26555?: CVE-2020-26555 primarily affects Bluetooth Bluetooth Core Specification. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-26555?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-26555 published?: CVE-2020-26555 was published on 2021-05-24 and last updated on 2026-06-17.

References

Affected products (17)

cpe:2.3:a:bluetooth:bluetooth_core_specification:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax210_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax201_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ax200_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9560_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9462_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9461_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_9260_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_8265_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_8260_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_3168_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_7265_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:ac_3165_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:killer_wi-fi_6e_ax1675_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:killer_wi-fi_6_ax1650_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:intel:killer_ac_1550_firmware:-:*:*:*:*:*:*:*

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