Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: Fixed a heap buffer overflow in ioam6fillTraceData. In the receive path, ioam6fillTraceData uses trace-nodelen to determine how much data to write for each node. It relies on this field directly from the incoming...

New NetScaler Zero-Day Exploited in Targeted Attacks Can Knock SAML Deployments Offline

Citrix has released security updates for a high-severity security flaw in NetScaler ADC and NetScaler Gateway that has been exploited as part of targeted zero-day attacks. The vulnerability, tracked as CVE-2026-88779 , carries a CVSS score of 8.7 out of 10.0. "CVE-2026-88779 is a memory overflow...

Vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway

Citrix has identified a vulnerability in NetScaler ADC and NetScaler Gateway. This vulnerability involves a memory overflow in versions of NetScaler ADC and NetScaler Gateway that are older than 14.1-73.41 and 13.1-64.28. This vulnerability can lead to a Denial of Service DoS attack, thereby...

CVE-2026-88779

A memory overflow vulnerability (CWE-119) exists in Citrix NetScaler ADC and NetScaler Gateway products. The issue arises when the appliance is configured as a SAML SP or SAML IdP , potentially leading to a Denial of Service (DoS) condition. Affected versions include NetScaler ADC before 14.1-73....

CVE-2026-88779 Memory overflow vulnerability leading to Denial of Service

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28...

CVE-2026-88779 Memory overflow vulnerability leading to Denial of Service

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fr...

Attackers Exploit NetScaler Flaw for Root Access, Deploy WHIPSHOT and SLAPSHOT

Unknown threat actors have been observed exploiting a newly patched security flaw in Citrix NetScaler ADC and NetScaler Gateway appliances to target organizations in North America and Europe. The activity, observed by Mandiant Consulting and Google Threat Intelligence Group GTIG in September 2026...

Citrix NetScaler CVE-2026-88772 Exploit Details Show Pre-Auth Path to Shellcode Execution

Cybersecurity researchers have disclosed technical details of a recently patched critical security flaw in Citrix NetScaler ADC and Gateway that has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-88772 CVSS score: 9.5, has been described as a memory overflow bu...

Zero-Day Exploitation of Citrix NetScaler ADC and Gateway: CVE-2026-88771 and CVE-2026-88772

Overview On September 27, 2026, Citrix disclosed eight new vulnerabilities affecting NetScaler ADC and NetScaler Gateway, including two critical remote code execution RCE vulnerabilities: CVE-2026-88771 and CVE-2026-88772. Both of these RCE vulnerabilities carry a critical CVSSv4 score of 9.5, an...

Exploit for CVE-2026-88772

CVE-2026-88772 - Citrix NetScaler ADC/Gateway DTLS memory over...

Citrix NetScaler ADC and Gateway DTLS Vulnerability Scanner

Citrix NetScaler ADC and NetScaler Gateway versions before 14.1-73.37 and 13.1-64.23 contain a DTLS memory overflow vulnerability that may lead to remote code execution or denial of service. This tool fingerprints exposed services, assesses build versions, and optionally sends a DTLS probe...

Exploit for CVE-2026-88772

CVE-2026-88772 — Citrix NetScaler DTLS memory overflow Python...

CVE-2026-88777

Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable...

CVE-2026-88775

Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability...

CVE-2026-88776

Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable...

CVE-2026-88777 Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service

Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable...

CVE-2026-88777

A memory overflow vulnerability exists in Citrix NetScaler ADC and Citrix NetScaler Gateway , leading to unpredictable behavior or a Denial of Service (DoS) . The flaw specifically impacts configurations as an LB/CS or CGNAT-LSN/NAT64 device where a non-HTTP Layer 7 protocol (such as FTP , RTSP ,...

CVE-2026-88777 Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service

Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable...

EUVD-2026-87972

Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable...