Home/CVE/User login brute force protection functionality bypass
CVE

CVE-2022-27516

User login brute force protection functionality bypass

User login brute force protection functionality bypass.

MEDIUM · CVSS 5.3 EPSS 0.0015
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-307Improper Restriction of Excessive Authentication Attempts
CWE-693Protection Mechanism Failure
▤

Affected Products & Versions

7
citrix gateway>= 12.1 and < 12.1-65.21
citrix gateway>= 13.0 and < 13.0-88.12
citrix gateway>= 13.1 and < 13.1-33.47
citrix application delivery controller firmware>= 12.1 and < 12.1-65.21
citrix application delivery controller firmware>= 13.0 and < 13.0-88.12
citrix application delivery controller firmware>= 13.1 and < 13.1-33.47
citrix application delivery controller firmware>= 12.1 and < 12.1-55.289
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumAzure Application Gateway Modified or Deleted
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secure@citrix.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Nov 2022 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.citrix.com/article/CTX463706/citrix-gateway-and-citrix-adc-security-bulletin-for-cve202227510-cve202227513-and-cve202227516Vendor Advisory
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