Netscaler News Articles

CISA Flags Exploited Cisco, Citrix, Fortinet Flaws, Sets Sept. 12 Federal Patch Deadline - SwapUpdate

Ravie LakshmananSep 10, 2026Vulnerability / Network Security

1 week ago

CISA Flags Exploited Cisco, Citrix, Fortinet Flaws, Sets Sept. 12 Federal Patch Deadline

CISA adds three exploited Cisco, Citrix, and Fortinet flaws to KEV, requiring federal agencies to patch by September 12, 2026.

2 weeks ago

Critical NetScaler Vulnerability Exploited in Attacks

Hackers have been exploiting CVE-2026-19490, a critical authentication bypass vulnerability in NetScaler, since at least September 3.

2 weeks ago

Critical Citrix NetScaler auth bypass now leveraged in attacks

Attackers have begun targeting a critical-severity Citrix NetScaler auth bypass flaw (CVE-2026-19490) in the wild, according to vulnerability intelligence company Previdian.

2 weeks ago

Citrix Builds Linux Recovery OS Into Windows PCs to Beat Ransomware and Outages

Citrix UniconOS dual boot adds a hardened Linux OS alongside Windows on the same disk. Users reboot into the isolated environment to access apps via DaaS and SecurAccess while IT remediates ransomware or corruption. The feature scales recovery without spare hardware.

3 weeks ago

CISA Warns of Citrix NetScaler ADC and Gateway Vulnerability Exploited in Attacks

CISA added critical Citrix NetScaler flaw CVE-2026-8452 to its KEV catalog after confirming exploitation.

4 weeks ago

Previously patched Citrix NetScaler flaw exploited in the wild (CVE-2026-8452) - IT Security News

2026-08-27 12:08 CISA added six new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, including a previously patched Citrix NetScaler ADC and Gateway flaw, tracked as...

4 weeks ago

Previously patched Citrix NetScaler flaw exploited in the wild (CVE-2026-8452) - Help Net Security

Citrix NetScaler ADC and Gateway flaw CVE-2026-8452 is under active attack, with hackers dropping web shells days after a public PoC.

4 weeks ago

CISA orders feds to patch Citrix NetScaler RCE flaw by Saturday

CISA has ordered U.S. government agencies to patch their Citrix NetScaler appliances against an actively exploited remote code execution vulnerability by Saturday.

4 weeks ago

CISA Adds Six Exploited Flaws to KEV, Including NetScaler, Linux, and SQL Server Bugs

CISA adds six exploited flaws to KEV, including a NetScaler bug tied to web shells and 36 exploitation attempts in 12 days.

4 weeks ago

Recent Citrix NetScaler Vulnerability Exploited in the Wild

Citrix NetScaler vulnerability tracked as CVE-2026-8452 has been exploited in the wild to deliver web shells, according to security firms.

4 weeks ago

Week in review: Records allegedly stolen from Azure tenants, Medusa ransomware hits 500+ orgs - Help Net Security

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Windows 11’s strongest security defenses can be bypassed

1 month ago

Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490) - Help Net Security

Citrix patched two vulnerabilities in NetScaler ADC and Gateway, including a critical bypass flaw, CVE-2026-19490.

Citrix urges customers to fix critical NetScaler authentication bypass (CVE-2026-19490) - IT Security News

2026-08-21 10:08 Citrix has patched two vulnerabilities in NetScaler ADC and NetScaler Gateway, including a critical authentication bypass flaw tracked as CVE-2026-19490, and is urging...

Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers

Citrix fixes NetScaler CVE-2026-19490, a CVSS 9.3 authentication bypass affecting certain Gateway, AAA, and SAML configurations.

Citrix urges admins to patch new NetScaler flaws as soon as possible

Citrix has warned customers to immediately secure their systems against two vulnerabilities affecting NetScaler Gateway secure remote access solutions and NetScaler ADC networking appliances.

Exploitation Expected for Critical Authentication Bypass Patched in Citrix NetScaler

Citrix has patched CVE-2026-19490, a critical-severity vulnerability in NetScaler leading to authentication bypass.

Citrix NetScaler Heap Overflow Flaw Lets Remote Attackers Execute Code as Root - PoC Released

Security researchers have published a working proof-of-concept (PoC) exploit demonstrating how a pre-authentication heap overflow in Citrix NetScaler ADC and NetScaler Gateway can be turned into unauthenticated root-level remote code execution (RCE).

CitrixBleed-ing Again? NetScaler Vulnerability Under Attack

Attackers wasted little time targeting the latest memory disclosure bug in Citrix NetScaler, after researchers published a proof-of-concept exploit.

CitrixBleed Vulnerability Exploitation Within 24 Hours of Disclosure - IT Security News

Citrix NetScaler appliances are currently facing significant threats due to the rapid exploitation of a newly disclosed memory disclosure vulnerability, CVE-2026-8451, which is part of the evolving “CitrixBleed” class. This high-severity flaw (CVSS 8.8), disclosed on June 30, 2026, in…Read more →

CitrixBleed Vulnerability Exploited by Hackers Within 24 Hours of Public Disclosure

A newly disclosed CitrixBleed-class vulnerability in Citrix NetScaler appliances came under active exploitation less than a day after public disclosure.

NetScaler Memory Overread Flaw Echoes CitrixBleed

A new NetScaler memory overread bug, CVE-2026-8451, leaks process data and revives CitrixBleed fears. Here is what admins need to patch and why it matters.

New CitrixBleed Vulnerability Exploited Immediately After Public Disclosure

Hackers began exploiting vulnerability CVE-2026-8451 in Citrix NetScaler ADC and NetScaler Gateways less than 24 hours after disclosure.

Citrix Patches Six NetScaler Flaws Allowing File Read and Denial-of-Service

Security updates fix six NetScaler ADC and Gateway vulnerabilities, including 8.8-rated DoS bugs and unauthenticated file read.

Citrix Patches NetScaler Vulnerabilities, Including New ‘HTTP/2 Bomb’ Attack

Citrix has patched five NetScaler ADC and NetScaler Gateway vulnerabilities, including a high-severity defect similar to CitrixBleed.