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Two more Citrix NetScaler bugs exploited in the wild

ID: 42e9cd19-d7a1-5a4a-a3d4-652d3a505c0d

STIX ID: report--42e9cd19-d7a1-5a4a-a3d4-652d3a505c0d

Feed Name: The Register (Security)

Threat Score
70/100

Date Published: 2024-01-18

Date Updated: 2026-04-26

Author: Jessica Lyons Hardcastle

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Two Citrix NetScaler ADC/Gateway vulnerabilities (CVE-2023-6548 — authenticated RCE, CVE-2023-6549 — DoS) have been patched after observed exploitation; affected versions are listed, around 1,400 management interfaces are exposed according to Shadowserver, Citrix and CISA confirm limited in-the-wild exploitation, and customers are urged to apply updates immediately.

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