CVE-2021-0146 [Medium] | Security Vulnerability in Pentium J6426 Firmware

CVE-2021-0146 is rated Low Risk (38.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.41%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.25%	0.41%	+0.16%
2	2026-01-14	0.27%	0.25%	-0.02%
3	2025-10-12	—	0.27%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.25%

0.41%

+0.16%

2026-01-14

0.27%

0.25%

-0.02%

2025-10-12

—

0.27%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
6.8	3.1	MEDIUM	`CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:P) Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire. 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.	0.9	5.9	[email protected]
4.6	2.0	MEDIUM	`AV:L/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:L) Requires local access to the target system. 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.	3.9	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

6.8

3.1

MEDIUM

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

Attack vector (AV:P): Hands-on access—USB, keyboard, opening the case—not something you do purely over the wire.
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.

0.9

5.9

[email protected]

4.6

2.0

MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand

Access vector (AV:L): Requires local access to the target system.
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.

3.9

6.4

[email protected]

OS Trackers for CVE-2021-0146

vendor	priority	summary	link
`alpine`	medium	CVE-2021-0146: 1 source package rows (intel-ucode); 7 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0.	https://security.alpinelinux.org/vuln/CVE-2021-0146
`gentoo`	high	CVE-2021-0146: 1 GLSA(s) (202402-22), 1 atom(s) (sys-firmware/intel-microcode); latest impact high.	https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2021-0146
`redhat`	high	—	https://access.redhat.com/security/cve/CVE-2021-0146
`suse`	high	CVE-2021-0146 severity important: SUSE including 13 source package names (microcode_ctl-1.17-102.83.75.2, ucode-intel-20220207-1.1, …), 73 product×package rows across 73 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (73 product lines)): Fixed 73.	https://www.suse.com/security/cve/CVE-2021-0146/
`ubuntu`	medium	CVE-2021-0146 medium priority: Ubuntu including 1 source packages (intel-microcode), 8 status rows across 8 suites (bionic, focal, impish, jammy, kinetic, trusty, upstream, xenial): released 7, ignored 1.	https://ubuntu.com/security/CVE-2021-0146

Affected software / configurations for CVE-2021-0146

Vendor	Product	Version	Raw CPE
intel	pentium_j6426_firmware	—	cpe:2.3:o:intel:pentium_j6426_firmware:-:::::::*
intel	pentium_j4205_firmware	—	cpe:2.3:o:intel:pentium_j4205_firmware:-:::::::*
intel	pentium_j3710_firmware	—	cpe:2.3:o:intel:pentium_j3710_firmware:-:::::::*
intel	pentium_j2900_firmware	—	cpe:2.3:o:intel:pentium_j2900_firmware:-:::::::*
intel	pentium_j2850_firmware	—	cpe:2.3:o:intel:pentium_j2850_firmware:-:::::::*
intel	celeron_j6412_firmware	—	cpe:2.3:o:intel:celeron_j6412_firmware:-:::::::*
intel	celeron_j6413_firmware	—	cpe:2.3:o:intel:celeron_j6413_firmware:-:::::::*
intel	celeron_j4125_firmware	—	cpe:2.3:o:intel:celeron_j4125_firmware:-:::::::*
intel	celeron_j4025_firmware	—	cpe:2.3:o:intel:celeron_j4025_firmware:-:::::::*
intel	celeron_j3355e_firmware	—	cpe:2.3:o:intel:celeron_j3355e_firmware:-:::::::*
intel	celeron_j3455e_firmware	—	cpe:2.3:o:intel:celeron_j3455e_firmware:-:::::::*
intel	celeron_j4105_firmware	—	cpe:2.3:o:intel:celeron_j4105_firmware:-:::::::*
intel	celeron_j4005_firmware	—	cpe:2.3:o:intel:celeron_j4005_firmware:-:::::::*
intel	celeron_j3455_firmware	—	cpe:2.3:o:intel:celeron_j3455_firmware:-:::::::*
intel	celeron_j3355_firmware	—	cpe:2.3:o:intel:celeron_j3355_firmware:-:::::::*
intel	celeron_j3160_firmware	—	cpe:2.3:o:intel:celeron_j3160_firmware:-:::::::*
intel	celeron_j3060_firmware	—	cpe:2.3:o:intel:celeron_j3060_firmware:-:::::::*
intel	celeron_j1800_firmware	—	cpe:2.3:o:intel:celeron_j1800_firmware:-:::::::*
intel	celeron_j1900_firmware	—	cpe:2.3:o:intel:celeron_j1900_firmware:-:::::::*
intel	celeron_j1850_firmware	—	cpe:2.3:o:intel:celeron_j1850_firmware:-:::::::*
intel	celeron_j1750_firmware	—	cpe:2.3:o:intel:celeron_j1750_firmware:-:::::::*
intel	celeron_n6210_firmware	—	cpe:2.3:o:intel:celeron_n6210_firmware:-:::::::*
intel	celeron_n4505_firmware	—	cpe:2.3:o:intel:celeron_n4505_firmware:-:::::::*
intel	celeron_n4500_firmware	—	cpe:2.3:o:intel:celeron_n4500_firmware:-:::::::*
intel	celeron_n5105_firmware	—	cpe:2.3:o:intel:celeron_n5105_firmware:-:::::::*
intel	celeron_n5100_firmware	—	cpe:2.3:o:intel:celeron_n5100_firmware:-:::::::*
intel	celeron_n6211_firmware	—	cpe:2.3:o:intel:celeron_n6211_firmware:-:::::::*
intel	celeron_n4120_firmware	—	cpe:2.3:o:intel:celeron_n4120_firmware:-:::::::*
intel	celeron_n4020_firmware	—	cpe:2.3:o:intel:celeron_n4020_firmware:-:::::::*
intel	celeron_n3350e_firmware	—	cpe:2.3:o:intel:celeron_n3350e_firmware:-:::::::*
intel	celeron_n4000_firmware	—	cpe:2.3:o:intel:celeron_n4000_firmware:-:::::::*
intel	celeron_n4100_firmware	—	cpe:2.3:o:intel:celeron_n4100_firmware:-:::::::*
intel	celeron_n3350_firmware	—	cpe:2.3:o:intel:celeron_n3350_firmware:-:::::::*
intel	celeron_n3450_firmware	—	cpe:2.3:o:intel:celeron_n3450_firmware:-:::::::*
intel	celeron_n3060_firmware	—	cpe:2.3:o:intel:celeron_n3060_firmware:-:::::::*
intel	celeron_n3160_firmware	—	cpe:2.3:o:intel:celeron_n3160_firmware:-:::::::*
intel	celeron_n3010_firmware	—	cpe:2.3:o:intel:celeron_n3010_firmware:-:::::::*
intel	celeron_n3000_firmware	—	cpe:2.3:o:intel:celeron_n3000_firmware:-:::::::*
intel	celeron_n3050_firmware	—	cpe:2.3:o:intel:celeron_n3050_firmware:-:::::::*
intel	celeron_n3150_firmware	—	cpe:2.3:o:intel:celeron_n3150_firmware:-:::::::*
intel	celeron_n2808_firmware	—	cpe:2.3:o:intel:celeron_n2808_firmware:-:::::::*
intel	celeron_n2840_firmware	—	cpe:2.3:o:intel:celeron_n2840_firmware:-:::::::*
intel	celeron_n2940_firmware	—	cpe:2.3:o:intel:celeron_n2940_firmware:-:::::::*
intel	celeron_n2807_firmware	—	cpe:2.3:o:intel:celeron_n2807_firmware:-:::::::*
intel	celeron_n2830_firmware	—	cpe:2.3:o:intel:celeron_n2830_firmware:-:::::::*
intel	celeron_n2930_firmware	—	cpe:2.3:o:intel:celeron_n2930_firmware:-:::::::*
intel	celeron_n2806_firmware	—	cpe:2.3:o:intel:celeron_n2806_firmware:-:::::::*
intel	celeron_n2920_firmware	—	cpe:2.3:o:intel:celeron_n2920_firmware:-:::::::*
intel	celeron_n2820_firmware	—	cpe:2.3:o:intel:celeron_n2820_firmware:-:::::::*
intel	celeron_n2815_firmware	—	cpe:2.3:o:intel:celeron_n2815_firmware:-:::::::*
intel	celeron_n2805_firmware	—	cpe:2.3:o:intel:celeron_n2805_firmware:-:::::::*
intel	celeron_n2810_firmware	—	cpe:2.3:o:intel:celeron_n2810_firmware:-:::::::*
intel	celeron_n2910_firmware	—	cpe:2.3:o:intel:celeron_n2910_firmware:-:::::::*
intel	atom_x5-e3930_firmware	—	cpe:2.3:o:intel:atom_x5-e3930_firmware:-:::::::*
intel	atom_x5-e3940_firmware	—	cpe:2.3:o:intel:atom_x5-e3940_firmware:-:::::::*
intel	atom_x7-e3950_firmware	—	cpe:2.3:o:intel:atom_x7-e3950_firmware:-:::::::*
intel	pentium_n6415_firmware	—	cpe:2.3:o:intel:pentium_n6415_firmware:-:::::::*
intel	pentium_n4200_firmware	—	cpe:2.3:o:intel:pentium_n4200_firmware:-:::::::*
intel	pentium_n3710_firmware	—	cpe:2.3:o:intel:pentium_n3710_firmware:-:::::::*
intel	pentium_n4200e_firmware	—	cpe:2.3:o:intel:pentium_n4200e_firmware:-:::::::*
intel	pentium_n3700_firmware	—	cpe:2.3:o:intel:pentium_n3700_firmware:-:::::::*
intel	pentium_n3540_firmware	—	cpe:2.3:o:intel:pentium_n3540_firmware:-:::::::*
intel	pentium_n3530_firmware	—	cpe:2.3:o:intel:pentium_n3530_firmware:-:::::::*
intel	pentium_n3520_firmware	—	cpe:2.3:o:intel:pentium_n3520_firmware:-:::::::*
intel	pentium_n3510_firmware	—	cpe:2.3:o:intel:pentium_n3510_firmware:-:::::::*
intel	pentium_silver_n6005_firmware	—	cpe:2.3:o:intel:pentium_silver_n6005_firmware:-:::::::*
intel	pentium_silver_n6000_firmware	—	cpe:2.3:o:intel:pentium_silver_n6000_firmware:-:::::::*
intel	pentium_silver_j5040_firmware	—	cpe:2.3:o:intel:pentium_silver_j5040_firmware:-:::::::*
intel	pentium_silver_n5030_firmware	—	cpe:2.3:o:intel:pentium_silver_n5030_firmware:-:::::::*
intel	pentium_silver_j5005_firmware	—	cpe:2.3:o:intel:pentium_silver_j5005_firmware:-:::::::*
intel	pentium_silver_n5000_firmware	—	cpe:2.3:o:intel:pentium_silver_n5000_firmware:-:::::::*
intel	atom_c3000_firmware	—	cpe:2.3:o:intel:atom_c3000_firmware:-:::::::*

References for CVE-2021-0146

URL	Tags
https://security.netapp.com/advisory/ntap-20211210-0006/	Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00528.html	Vendor Advisory

URL

CVE-2021-0146

Exploit prediction scoring system (EPSS) score for CVE-2021-0146

Common vulnerability scoring system (CVSS) metrics for CVE-2021-0146

Weakness enumeration for CVE-2021-0146

OS Trackers for CVE-2021-0146

Affected software / configurations for CVE-2021-0146

References for CVE-2021-0146