CVE-2020-12321

Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before version 21.110 may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.

Published: 2020-11-12 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12321 is rated Moderate Risk (55.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.97%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2020-12321

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.31% 0.97% +0.66%
2 2025-03-17 0.06% 0.31% +0.25%
3 2023-03-07 — 0.06% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12321

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
5.8 2.0 MEDIUM
AV:A/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.5 6.4 [email protected]

Weakness enumeration for CVE-2020-12321

OS Trackers for CVE-2020-12321

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2020-12321
suse critical CVE-2020-12321 severity critical: SUSE including 51 source package names (iwl100-firmware-39.31.5.1-101.el8_3.1, iwl100-firmware-39.31.5.1-80.el7_9, …), 104 product×package rows across 38 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (38 product lines)): Fixed 101, Known Not Affected 3. https://www.suse.com/security/cve/CVE-2020-12321/

Affected software / configurations for CVE-2020-12321

Vendor Product Version Raw CPE
intel dual_band_wireless-ac_3168_firmware < 21.110 cpe:2.3:o:intel:dual_band_wireless-ac_3168_firmware:*:*:*:*:*:*:*:*
intel dual_band_wireless-ac_8260_firmware < 21.110 cpe:2.3:o:intel:dual_band_wireless-ac_8260_firmware:*:*:*:*:*:*:*:*
intel dual_band_wireless-ac_8265_firmware < 21.110 cpe:2.3:o:intel:dual_band_wireless-ac_8265_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6_ax200_firmware < 21.110 cpe:2.3:o:intel:wi-fi_6_ax200_firmware:*:*:*:*:*:*:*:*
intel wi-fi_6_ax201_firmware < 21.110 cpe:2.3:o:intel:wi-fi_6_ax201_firmware:*:*:*:*:*:*:*:*
intel wireless-ac_9260_firmware < 21.110 cpe:2.3:o:intel:wireless-ac_9260_firmware:*:*:*:*:*:*:*:*
intel wireless-ac_9461_firmware < 21.110 cpe:2.3:o:intel:wireless-ac_9461_firmware:*:*:*:*:*:*:*:*
intel wireless-ac_9462_firmware < 21.110 cpe:2.3:o:intel:wireless-ac_9462_firmware:*:*:*:*:*:*:*:*
intel wireless-ac_9560_firmware < 21.110 cpe:2.3:o:intel:wireless-ac_9560_firmware:*:*:*:*:*:*:*:*
intel wireless_7265_\(rev_d\)_firmware < 21.110 cpe:2.3:o:intel:wireless_7265_\(rev_d\)_firmware:*:*:*:*:*:*:*:*
intel dual_band_wireless-ac_3165_firmware < 21.110 cpe:2.3:o:intel:dual_band_wireless-ac_3165_firmware:*:*:*:*:*:*:*:*

References for CVE-2020-12321

cvelogic Threat Intelligence