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CVE-2026-8655 is a high-severity vulnerability affecting NetScaler ADC and NetScaler Gateway. It consists of multiple memory overflow vulnerabilities that can trigger memory corruption during specific NetScaler ADC deployment modes. The issue is exposed when NetScaler ADC is configured as an Oracle-type load balancer, as a DNS Proxy, or as a DNS recursive resolver deployment. Successful exploitation can cause unpredictable or erroneous behavior and service instability, resulting in denial of service. Publicly available information identifies the flaw class as memory corruption, but does not provide function-level details about the vulnerable code paths.
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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.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
24 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A named vulnerability included in Citrix's NetScaler security bulletin referenced by the content.
Multiple memory corruption issues in Citrix NetScaler ADC and NetScaler Gateway affecting certain load balancing and DNS configurations.
A high-severity vulnerability in Citrix NetScaler ADC and NetScaler Gateway related to improper memory handling and insufficient input validation that can be exploited to cause denial-of-service or memory overflow conditions.
A high-severity NetScaler vulnerability fixed by Citrix; the article groups it among out-of-bounds read, memory overflow, and arbitrary file read bugs but does not map the exact bug type to this CVE.
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.