CVE-2020-0548 [Medium] | Information Disclosure in Core I7-8700b Firmware

CVE-2020-0548 is rated Moderate Risk (43.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.40%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-03-20	0.49%	0.40%	-0.09%
2	2026-03-04	0.12%	0.49%	+0.37%
3	2026-03-01	—	0.12%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-03-20

0.49%

0.40%

-0.09%

2026-03-04

0.12%

0.49%

+0.37%

2026-03-01

—

0.12%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.5	3.1	MEDIUM	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N` Click to expand Attack vector (AV:L) They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by. 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:L) A normal user session is enough; they don’t have to be admin. 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:N) Data isn’t meaningfully altered or forged. Availability (A:N) Service keeps running; no real outage angle.	1.8	3.6	[email protected]
2.1	2.0	LOW	`AV:L/AC:L/Au:N/C:P/I:N/A:N` 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:N) No integrity impact. Availability impact (A:N) No availability impact.	3.9	2.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.5

3.1

MEDIUM

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

Attack vector (AV:L): They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:L): A normal user session is enough; they don’t have to be admin.
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:N): Data isn’t meaningfully altered or forged.
Availability (A:N): Service keeps running; no real outage angle.

1.8

3.6

[email protected]

2.1

2.0

LOW

AV:L/AC:L/Au:N/C:P/I:N/A:N 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:N): No integrity impact.
Availability impact (A:N): No availability impact.

3.9

2.9

[email protected]

OS Trackers for CVE-2020-0548

vendor	priority	summary	link
`alpine`	medium	CVE-2020-0548: 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-2020-0548
`debian`	not yet assigned	CVE-2020-0548 not yet assigned priority: Debian including 1 source packages (intel-microcode), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2020-0548
`redhat`	low	—	https://access.redhat.com/security/cve/CVE-2020-0548
`suse`	medium	CVE-2020-0548 severity moderate: SUSE including 38 source package names (microcode_ctl-1.17-102.83.53.1, microcode_ctl-2.1-73.11.el7_9, …), 90 product×package rows across 65 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (65 product lines)): Fixed 73, Known Not Affected 17.	https://www.suse.com/security/cve/CVE-2020-0548/
`ubuntu`	medium	CVE-2020-0548 medium priority: Ubuntu including 1 source packages (intel-microcode), 8 status rows across 8 suites (bionic, disco, eoan, focal, groovy, trusty, upstream, xenial): released 6, ignored 1, needed 1.	https://ubuntu.com/security/CVE-2020-0548

Affected software / configurations for CVE-2020-0548

Vendor	Product	Version	Raw CPE
intel	core_i7-8700b_firmware	—	cpe:2.3:o:intel:core_i7-8700b_firmware:-:::::::*
intel	core_i7-8569u_firmware	—	cpe:2.3:o:intel:core_i7-8569u_firmware:-:::::::*
intel	core_i7_8650u_firmware	—	cpe:2.3:o:intel:core_i7_8650u_firmware:-:::::::*
intel	core_i7_8565u_firmware	—	cpe:2.3:o:intel:core_i7_8565u_firmware:-:::::::*
intel	core_i7_8560u_firmware	—	cpe:2.3:o:intel:core_i7_8560u_firmware:-:::::::*
intel	core_i7_8559u_firmware	—	cpe:2.3:o:intel:core_i7_8559u_firmware:-:::::::*
intel	core_i7_8550u_firmware	—	cpe:2.3:o:intel:core_i7_8550u_firmware:-:::::::*
intel	core_i7_8500y_firmware	—	cpe:2.3:o:intel:core_i7_8500y_firmware:-:::::::*
intel	core_i7_10510y_firmware	—	cpe:2.3:o:intel:core_i7_10510y_firmware:-:::::::*
intel	core_i5_10310y_firmware	—	cpe:2.3:o:intel:core_i5_10310y_firmware:-:::::::*
intel	core_i5_10210y_firmware	—	cpe:2.3:o:intel:core_i5_10210y_firmware:-:::::::*
intel	core_i5_10110y_firmware	—	cpe:2.3:o:intel:core_i5_10110y_firmware:-:::::::*
intel	xeon_8253_firmware	—	cpe:2.3:o:intel:xeon_8253_firmware:-:::::::*
intel	xeon_8256_firmware	—	cpe:2.3:o:intel:xeon_8256_firmware:-:::::::*
intel	xeon_8260_firmware	—	cpe:2.3:o:intel:xeon_8260_firmware:-:::::::*
intel	xeon_8260l_firmware	—	cpe:2.3:o:intel:xeon_8260l_firmware:-:::::::*
intel	xeon_8260m_firmware	—	cpe:2.3:o:intel:xeon_8260m_firmware:-:::::::*
intel	xeon_8260y_firmware	—	cpe:2.3:o:intel:xeon_8260y_firmware:-:::::::*
intel	xeon_8268_firmware	—	cpe:2.3:o:intel:xeon_8268_firmware:-:::::::*
intel	xeon_8270_firmware	—	cpe:2.3:o:intel:xeon_8270_firmware:-:::::::*
intel	xeon_8276_firmware	—	cpe:2.3:o:intel:xeon_8276_firmware:-:::::::*
intel	xeon_8276l_firmware	—	cpe:2.3:o:intel:xeon_8276l_firmware:-:::::::*
intel	xeon_8276m_firmware	—	cpe:2.3:o:intel:xeon_8276m_firmware:-:::::::*
intel	xeon_8280_firmware	—	cpe:2.3:o:intel:xeon_8280_firmware:-:::::::*
intel	xeon_8280l_firmware	—	cpe:2.3:o:intel:xeon_8280l_firmware:-:::::::*
intel	xeon_8280m_firmware	—	cpe:2.3:o:intel:xeon_8280m_firmware:-:::::::*
intel	xeon_9220_firmware	—	cpe:2.3:o:intel:xeon_9220_firmware:-:::::::*
intel	xeon_9221_firmware	—	cpe:2.3:o:intel:xeon_9221_firmware:-:::::::*
intel	xeon_9222_firmware	—	cpe:2.3:o:intel:xeon_9222_firmware:-:::::::*
intel	xeon_9242_firmware	—	cpe:2.3:o:intel:xeon_9242_firmware:-:::::::*
intel	xeon_9282_firmware	—	cpe:2.3:o:intel:xeon_9282_firmware:-:::::::*
intel	xeon_5215_firmware	—	cpe:2.3:o:intel:xeon_5215_firmware:-:::::::*
intel	xeon_5215l_firmware	—	cpe:2.3:o:intel:xeon_5215l_firmware:-:::::::*
intel	xeon_5215m_firmware	—	cpe:2.3:o:intel:xeon_5215m_firmware:-:::::::*
intel	xeon_5215r_firmware	—	cpe:2.3:o:intel:xeon_5215r_firmware:-:::::::*
intel	xeon_5217_firmware	—	cpe:2.3:o:intel:xeon_5217_firmware:-:::::::*
intel	xeon_5218_firmware	—	cpe:2.3:o:intel:xeon_5218_firmware:-:::::::*
intel	xeon_5218b_firmware	—	cpe:2.3:o:intel:xeon_5218b_firmware:-:::::::*
intel	xeon_5218n_firmware	—	cpe:2.3:o:intel:xeon_5218n_firmware:-:::::::*
intel	xeon_5218t_firmware	—	cpe:2.3:o:intel:xeon_5218t_firmware:-:::::::*
intel	xeon_5220_firmware	—	cpe:2.3:o:intel:xeon_5220_firmware:-:::::::*
intel	xeon_5220r_firmware	—	cpe:2.3:o:intel:xeon_5220r_firmware:-:::::::*
intel	xeon_5220s_firmware	—	cpe:2.3:o:intel:xeon_5220s_firmware:-:::::::*
intel	xeon_5220t_firmware	—	cpe:2.3:o:intel:xeon_5220t_firmware:-:::::::*
intel	xeon_5222_firmware	—	cpe:2.3:o:intel:xeon_5222_firmware:-:::::::*
intel	xeon_6222v_firmware	—	cpe:2.3:o:intel:xeon_6222v_firmware:-:::::::*
intel	xeon_6226_firmware	—	cpe:2.3:o:intel:xeon_6226_firmware:-:::::::*
intel	xeon_6230_firmware	—	cpe:2.3:o:intel:xeon_6230_firmware:-:::::::*
intel	xeon_6230n_firmware	—	cpe:2.3:o:intel:xeon_6230n_firmware:-:::::::*
intel	xeon_6230t_firmware	—	cpe:2.3:o:intel:xeon_6230t_firmware:-:::::::*
intel	xeon_6234_firmware	—	cpe:2.3:o:intel:xeon_6234_firmware:-:::::::*
intel	xeon_6238_firmware	—	cpe:2.3:o:intel:xeon_6238_firmware:-:::::::*
intel	xeon_6238l_firmware	—	cpe:2.3:o:intel:xeon_6238l_firmware:-:::::::*
intel	xeon_6238m_firmware	—	cpe:2.3:o:intel:xeon_6238m_firmware:-:::::::*
intel	xeon_6238t_firmware	—	cpe:2.3:o:intel:xeon_6238t_firmware:-:::::::*
intel	xeon_6240_firmware	—	cpe:2.3:o:intel:xeon_6240_firmware:-:::::::*
intel	xeon_6240l_firmware	—	cpe:2.3:o:intel:xeon_6240l_firmware:-:::::::*
intel	xeon_6240m_firmware	—	cpe:2.3:o:intel:xeon_6240m_firmware:-:::::::*
intel	xeon_6240y_firmware	—	cpe:2.3:o:intel:xeon_6240y_firmware:-:::::::*
intel	xeon_6242_firmware	—	cpe:2.3:o:intel:xeon_6242_firmware:-:::::::*
intel	xeon_6244_firmware	—	cpe:2.3:o:intel:xeon_6244_firmware:-:::::::*
intel	xeon_6246_firmware	—	cpe:2.3:o:intel:xeon_6246_firmware:-:::::::*
intel	xeon_6248_firmware	—	cpe:2.3:o:intel:xeon_6248_firmware:-:::::::*
intel	xeon_6252_firmware	—	cpe:2.3:o:intel:xeon_6252_firmware:-:::::::*
intel	xeon_6252n_firmware	—	cpe:2.3:o:intel:xeon_6252n_firmware:-:::::::*
intel	xeon_6254_firmware	—	cpe:2.3:o:intel:xeon_6254_firmware:-:::::::*
intel	xeon_6262v_firmware	—	cpe:2.3:o:intel:xeon_6262v_firmware:-:::::::*
intel	xeon_4208_firmware	—	cpe:2.3:o:intel:xeon_4208_firmware:-:::::::*
intel	xeon_4208r_firmware	—	cpe:2.3:o:intel:xeon_4208r_firmware:-:::::::*
intel	xeon_4209t_firmware	—	cpe:2.3:o:intel:xeon_4209t_firmware:-:::::::*
intel	xeon_4210_firmware	—	cpe:2.3:o:intel:xeon_4210_firmware:-:::::::*
intel	xeon_4210r_firmware	—	cpe:2.3:o:intel:xeon_4210r_firmware:-:::::::*
intel	xeon_4214_firmware	—	cpe:2.3:o:intel:xeon_4214_firmware:-:::::::*
intel	xeon_4214c_firmware	—	cpe:2.3:o:intel:xeon_4214c_firmware:-:::::::*
intel	xeon_4214r_firmware	—	cpe:2.3:o:intel:xeon_4214r_firmware:-:::::::*
intel	xeon_4214y_firmware	—	cpe:2.3:o:intel:xeon_4214y_firmware:-:::::::*
intel	xeon_4215_firmware	—	cpe:2.3:o:intel:xeon_4215_firmware:-:::::::*
intel	xeon_4216_firmware	—	cpe:2.3:o:intel:xeon_4216_firmware:-:::::::*
intel	xeon_4216r_firmware	—	cpe:2.3:o:intel:xeon_4216r_firmware:-:::::::*
intel	xeon_3204_firmware	—	cpe:2.3:o:intel:xeon_3204_firmware:-:::::::*

References for CVE-2020-0548

URL	Tags
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00016.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00019.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DT2VKDMQ3I37NBNJ256A2EXR7OJHXXKZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T5OUM24ZC43G4IDT3JUCIHJTSDXJSK6Y/
https://security.netapp.com/advisory/ntap-20200210-0004/	Third Party Advisory
https://usn.ubuntu.com/4385-1/
https://www.debian.org/security/2020/dsa-4701
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00329.html	Vendor Advisory

URL

CVE-2020-0548

Exploit prediction scoring system (EPSS) score for CVE-2020-0548

Common vulnerability scoring system (CVSS) metrics for CVE-2020-0548

Weakness enumeration for CVE-2020-0548

OS Trackers for CVE-2020-0548

Affected software / configurations for CVE-2020-0548

References for CVE-2020-0548