CVE-2022-27636

On F5 BIG-IP APM 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all versions of 12.1.x and 11.6.x, as well as F5 BIG-IP APM Clients 7.x versions prior to 7.2.1.5, BIG-IP Edge Client may log sensitive APM session-related information when VPN is launched on a Windows system. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

Published: 2022-05-05 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2022-27636 is rated Low Risk (37.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.21%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-27636

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-11-21 0.10% 0.21% +0.11%
2 2025-11-18 0.16% 0.10% -0.06%
3 2025-05-23 0.16%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27636

CVSS metrics for this CVE.

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]
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]

Weakness enumeration for CVE-2022-27636

Affected software / configurations for CVE-2022-27636

Vendor Product Version Raw CPE
f5 big-ip_access_policy_manager 11.6.1 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.6.2 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.6.3 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.6.4 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 11.6.5 cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.5:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.5:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 12.1.6 cpe:2.3:a:f5:big-ip_access_policy_manager:12.1.6:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 13.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:13.1.5:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 14.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 14.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 14.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 14.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:14.1.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.3 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.3:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.4 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.4:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 15.1.5 cpe:2.3:a:f5:big-ip_access_policy_manager:15.1.5:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 16.1.0 cpe:2.3:a:f5:big-ip_access_policy_manager:16.1.0:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 16.1.1 cpe:2.3:a:f5:big-ip_access_policy_manager:16.1.1:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager 16.1.2 cpe:2.3:a:f5:big-ip_access_policy_manager:16.1.2:*:*:*:*:*:*:*
f5 big-ip_access_policy_manager_client >= 7.1.6, <= 7.2.1 cpe:2.3:a:f5:big-ip_access_policy_manager_client:*:*:*:*:*:*:*:*

References for CVE-2022-27636

cvelogic Threat Intelligence