CVE & CISA-KEV Catalog

CVE-2022-27518

CRITICALCISA KEVEPSS 93th pctl
9.8
CVSS v3
NVD

Description

Unauthenticated remote arbitrary code execution

CWE-664

How to fix

Remediation Available
application delivery controller firmwareNVD
Affected:>= 12.1, < 12.1-55.291Fixed in:12.1-55.291CVE-2022-27518derived from NVD
Affected:>= 13.0, < 13.0-58.32Fixed in:13.0-58.32CVE-2022-27518derived from NVD
gateway firmwareNVD
Affected:>= 13.0, < 13.0-58.32Fixed in:13.0-58.32CVE-2022-27518derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

6.88%probability of exploitation in 30 days
93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability

Citrix Application Delivery Controller (ADC) and Gateway, when configured with SAML SP or IdP configuration, contain an authentication bypass vulnerability that allows an attacker to execute code as administrator.

Apply updates per vendor instructions.

Remediation due: 2023-01-03

References

Vendor Advisory1
Government Resource1

Related Vulnerabilities

Other CWE-664 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-2048High7.52.3%-Fix
CVE-2022-2191High7.52.1%--
CVE-2020-3175High8.62.0%--
CVE-2019-5816High8.81.6%-Fix
CVE-2024-45383Medium5.01.5%--
CVE-2019-16779Medium5.81.4%-Fix

Common questions

How do I fix CVE-2022-27518?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2022-27518 being actively exploited?

Yes. CVE-2022-27518 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2023-01-03. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2022-27518?

CVE-2022-27518 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-27518 affect?

Published advisories record a fix for application delivery controller firmware (NVD), gateway firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2022-27518 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-25.