CVE-2020-8744 [High] | Security Vulnerability in Converged Security And Ma…

Improper initialization in subsystem for Intel(R) CSME versions before12.0.70, 13.0.40, 13.30.10, 14.0.45 and 14.5.25, Intel(R) TXE versions before 4.0.30 Intel(R) SPS versions before E3_05.01.04.200 may allow a privileged user to potentially enable escalation of privilege via local access.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.16%	0.36%	+0.20%
2	2025-11-21	0.08%	0.16%	+0.08%
3	2025-11-18	—	0.08%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.16%

0.36%

+0.20%

2025-11-21

0.08%

0.16%

+0.08%

2025-11-18

—

0.08%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.8	3.1	HIGH	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H` 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: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.	1.8	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

7.8

3.1

HIGH

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

1.8

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]

Affected software / configurations for CVE-2020-8744

Vendor	Product	Version	Raw CPE
intel	converged_security_and_management_engine	< 12.0.70	cpe:2.3:a:intel:converged_security_and_management_engine::::::::
intel	converged_security_and_management_engine	>= 13.0.0, < 13.0.40	cpe:2.3:a:intel:converged_security_and_management_engine::::::::
intel	converged_security_and_management_engine	>= 13.30.0, < 13.30.10	cpe:2.3:a:intel:converged_security_and_management_engine::::::::
intel	converged_security_and_management_engine	>= 14.0.0, < 14.0.45	cpe:2.3:a:intel:converged_security_and_management_engine::::::::
intel	converged_security_and_management_engine	>= 14.5.0, < 14.5.25	cpe:2.3:a:intel:converged_security_and_management_engine::::::::
intel	server_platform_services	< e3_05.01.04.200	cpe:2.3:a:intel:server_platform_services::::::::
intel	trusted_execution_engine	< 4.0.30	cpe:2.3:o:intel:trusted_execution_engine::::::::
siemens	simatic_s7-1518-4_pn\/dp_mfp_firmware	—	cpe:2.3:o:siemens:simatic_s7-1518-4_pn\/dp_mfp_firmware:-:::::::*
siemens	simatic_s7-1518f-4_pn\/dp_mfp_firmware	—	cpe:2.3:o:siemens:simatic_s7-1518f-4_pn\/dp_mfp_firmware:-:::::::*
siemens	simatic_s7-1500_firmware	—	cpe:2.3:o:siemens:simatic_s7-1500_firmware:-:::::::*

References for CVE-2020-8744

URL	Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-501073.pdf	Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20201113-0002/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20201113-0004/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20201113-0005/	Third Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00391	Vendor Advisory

URL

CVE-2020-8744

Exploit prediction scoring system (EPSS) score for CVE-2020-8744

Common vulnerability scoring system (CVSS) metrics for CVE-2020-8744

Weakness enumeration for CVE-2020-8744

Affected software / configurations for CVE-2020-8744

References for CVE-2020-8744