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CVE-2022-27518 is a critical unauthenticated remote code execution vulnerability affecting Citrix ADC and Citrix Gateway appliances, including Citrix ADC FIPS and NDcPP builds. Successful exploitation allows a remote attacker to execute arbitrary code on a vulnerable appliance without authentication. The vulnerability affects supported versions only when the appliance is configured for SAML functionality as either a SAML service provider or a SAML identity provider. The issue was reported as being exploited in the wild as a zero-day.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A previously favored Citrix NetScaler ADC/Gateway vulnerability that has historically been targeted by multiple state-sponsored and ransomware threat actors.
A specific vulnerability exploited for illegitimate access in SPACEHOP/APT5 activity, in the context of externally facing software and devices including Citrix Application Delivery Controllers.
A critical unauthenticated remote code execution vulnerability affecting Citrix ADC and Citrix Gateway systems configured with SAML SP or IdP.
A vulnerability exploited for illegitimate access during SPACEHOP Activity.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.