CVE-2021-38647 [Exploited] | Microsoft Azure Automation State … RCE

CVE-2021-38647 is rated Critical Active Threat (99.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 94.36%, 100th percentile). CISA KEV confirms active exploitation (added 2021-11-03) affecting Microsoft / Open Management Infrastructure (OMI). Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

EDB-ID	Source	Kind	Published	Link
—	nvd_ref	exploit_tag		Exploit-DB ↗

EDB-ID

Source

Kind

Published

Link

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nvd_ref

exploit_tag

Exploit-DB ↗

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2025-11-21	94.34%	94.36%	+0.02%
2	2025-11-18	94.39%	94.34%	-0.05%
3	2025-10-19	—	94.39%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2025-11-21

94.34%

94.36%

+0.02%

2025-11-18

94.39%

94.34%

-0.05%

2025-10-19

—

94.39%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. 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.	3.9	5.9	[email protected]
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. 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.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. 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.	10.0	6.4	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

9.8

3.1

CRITICAL

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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.

3.9

5.9

[email protected]

9.8

3.1

CRITICAL

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

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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.

3.9

5.9

[email protected]

7.5

2.0

HIGH

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

Access vector (AV:N): Can be exploited remotely over network reachability.
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.

10.0

6.4

[email protected]

OS Trackers for CVE-2021-38647

vendor	priority	summary	link
`suse`	critical	—	https://www.suse.com/security/cve/CVE-2021-38647/

vendor

priority

summary

link

suse

critical

—

https://www.suse.com/security/cve/CVE-2021-38647/

Affected software / configurations for CVE-2021-38647

Vendor	Product	Version	Raw CPE
microsoft	azure_automation_state_configuration	—	cpe:2.3:a:microsoft:azure_automation_state_configuration:-:::::::*
microsoft	azure_automation_update_management	—	cpe:2.3:a:microsoft:azure_automation_update_management:-:::::::*
microsoft	azure_diagnostics_\(lad\)	—	cpe:2.3:a:microsoft:azure_diagnostics_\(lad\):-:::::::*
microsoft	azure_open_management_infrastructure	—	cpe:2.3:a:microsoft:azure_open_management_infrastructure:-:::::::*
microsoft	azure_security_center	—	cpe:2.3:a:microsoft:azure_security_center:-:::::::*
microsoft	azure_sentinel	—	cpe:2.3:a:microsoft:azure_sentinel:-:::::::*
microsoft	azure_stack_hub	—	cpe:2.3:a:microsoft:azure_stack_hub:-:::::::*
microsoft	container_monitoring_solution	—	cpe:2.3:a:microsoft:container_monitoring_solution:-:::::::*
microsoft	log_analytics_agent	—	cpe:2.3:a:microsoft:log_analytics_agent:-:::::::*
microsoft	system_center_operations_manager	—	cpe:2.3:a:microsoft:system_center_operations_manager:-:::::::*

References for CVE-2021-38647

URL	Tags
http://packetstormsecurity.com/files/164694/Microsoft-OMI-Management-Interface-Authentication-Bypass.html	Exploit Third Party Advisory VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38647	Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-38647	US Government Resource

URL

CVE-2021-38647 | Open Management Infrastructure Remote Code Execution Vulnerability

CISA KEV Record for CVE-2021-38647

Public exploit references (Exploit-DB) for CVE-2021-38647

Exploit prediction scoring system (EPSS) score for CVE-2021-38647

Common vulnerability scoring system (CVSS) metrics for CVE-2021-38647

Weakness enumeration for CVE-2021-38647

OS Trackers for CVE-2021-38647

Affected software / configurations for CVE-2021-38647

References for CVE-2021-38647