CVE-2022-27507 | Authenticated denial of service

Authenticated denial of service

Published: 2023-01-26 Last update: 2025-04-01 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-27507 is rated Moderate Risk (46.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.98%). Review affected assets and schedule remediation.

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-2022-27507

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 2026-06-15 0.83% 0.98% +0.15%
2 2026-05-22 0.65% 0.83% +0.17%
3 2025-11-21 — 0.65% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-27507

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2022-27507

Affected software / configurations for CVE-2022-27507

Vendor Product Version Raw CPE
citrix gateway >= 12.1, < 12.1-64.17 cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix gateway >= 13.0, < 13.0-85.19 cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix gateway >= 13.1, < 13.1-21.50 cpe:2.3:a:citrix:gateway:*:*:*:*:*:*:*:*
citrix application_delivery_controller >= 12.1, < 12.1-55.278 cpe:2.3:a:citrix:application_delivery_controller:*:*:*:*:fips:*:*:*
citrix application_delivery_controller >= 12.1, < 12.1-55.278 cpe:2.3:a:citrix:application_delivery_controller:*:*:*:*:ndcpp:*:*:*
citrix application_delivery_controller >= 12.1, < 12.1-64.17 cpe:2.3:a:citrix:application_delivery_controller:*:*:*:*:*:*:*:*
citrix application_delivery_controller >= 13.0, < 13.0-85.19 cpe:2.3:a:citrix:application_delivery_controller:*:*:*:*:*:*:*:*
citrix application_delivery_controller >= 13.1, < 13.1-21.50 cpe:2.3:a:citrix:application_delivery_controller:*:*:*:*:*:*:*:*

References for CVE-2022-27507

cvelogic Threat Intelligence