CVE-2023-38155 [High] | RCE in Azure Devops Server

CVE-2023-38155 is rated Moderate Risk (48.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.36%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-07	0.34%	0.36%	+0.02%
2	2025-11-21	0.84%	0.34%	-0.50%
3	2025-11-18	—	0.84%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-07

0.34%

0.36%

+0.02%

2025-11-21

0.84%

0.34%

-0.50%

2025-11-18

—

0.84%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.0	3.1	HIGH	`CVSS:3.1/AV:L/AC:H/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:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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.	1.0	5.9	[email protected]
8.1	3.1	HIGH	`CVSS:3.1/AV:N/AC:H/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:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. 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.	2.2	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.0

3.1

HIGH

CVSS:3.1/AV:L/AC:H/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:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.

1.0

5.9

[email protected]

8.1

3.1

HIGH

CVSS:3.1/AV:N/AC:H/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:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.

2.2

5.9

[email protected]

Affected software / configurations for CVE-2023-38155

Vendor	Product	Version	Raw CPE
microsoft	azure_devops_server	2019.0.1	cpe:2.3:o:microsoft:azure_devops_server:2019.0.1:::::::*
microsoft	azure_devops_server	2019.1.2	cpe:2.3:o:microsoft:azure_devops_server:2019.1.2:::::::*
microsoft	azure_devops_server	2020.1.2	cpe:2.3:o:microsoft:azure_devops_server:2020.1.2:::::::*
microsoft	azure_devops_server	2022.0.1	cpe:2.3:o:microsoft:azure_devops_server:2022.0.1:::::::*
microsoft	azure_devops_server	2022.0.2	cpe:2.3:o:microsoft:azure_devops_server:2022.0.2:::::::*

References for CVE-2023-38155

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38155	Patch Vendor Advisory

URL

CVE-2023-38155 | Azure DevOps Server Remote Code Execution Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2023-38155

Common vulnerability scoring system (CVSS) metrics for CVE-2023-38155

Weakness enumeration for CVE-2023-38155

Affected software / configurations for CVE-2023-38155

References for CVE-2023-38155