Zero-Day Vulnerabilities

Exploited
ShinyHunters’ exploitation of a new PeopleSoft zero-day hole threatens to change enterprise risk dynamics

October 6, 2026

Global Cyber Security, Malware & Exploits, Ransomware, UK Industry News, Zero-Day Vulnerabilities, UK Cyber Security News, Threat Intelligence

A recent compromise of PeopleSoft by hacking group ShinyHunters is causing new concerns for enterprise users of the Oracle product, with analysts recommending extreme measures in response. Law enforcement has made some progress in its pursuit of the cyber criminals involved. On Saturday, Reuters reported that a suspected member of ShinyHunters had been arrested by…
CSO Online UK
Exploited
Citrix discloses third actively exploited NetScaler zero-day in less than a week

October 5, 2026

Global Cyber Attacks, Global Cyber Security, Malware & Exploits, Zero-Day Vulnerabilities, Threat Intelligence

The vendor was much quicker and consistent in its response to the latest defect, and researchers consider the impact relatively low compared to the previous pair of zero-days.
CyberScoop
Exploited
Citrix NetScaler security snafus get even worse amid more 0-day reports

October 5, 2026

UK Cyber Attacks, Zero-Day Vulnerabilities, UK Cyber Security News, Threat Intelligence

The new vuln, CVE-2026-88779, is a memory overflow bug that leads to denial of service…
The Register
Exploited
U.S. CISA adds Citrix NetScaler flaw to its Known Exploited Vulnerabilities catalog

October 5, 2026

Global Cyber Attacks, Global Cyber Security, Malware & Exploits, Zero-Day Vulnerabilities, Threat Intelligence

U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Citrix NetScaler flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added a Citrix NetScaler flaw tracked as CVE-2026-88779 (CVSS score of 8.7), to its Known Exploited Vulnerabilities (KEV) catalog. CVE-2026-88779 is a memory overflow vulnerability in Citrix NetScaler ADC and…
Security Affairs
Exploited
Citrix warns of actively exploited NetScaler flaw days after zero-day patch rush

October 5, 2026

Malware & Exploits, UK Industry News, Zero-Day Vulnerabilities, UK Cyber Security News, Threat Intelligence

Citrix has warned customers about another high-severity vulnerability in its NetScaler ADC and NetScaler Gateway products, just days after the company urged them to fix a separate batch of flaws that included two actively exploited zero-days. The new vulnerability, tracked as CVE-2026-88779, is a memory-overflow issue that can cause a denial-of-service (DoS) condition on affected…
CSO Online UK
Exploited
Out-of-band Exchange Server update fixes high-severity mailbox access bug (CVE-2026-96940)

October 5, 2026

Cyber Security News, Enterprise & Cloud Security, Malware & Exploits, Microsoft Security, Zero-Day Vulnerabilities, Threat Intelligence

Microsoft has pushed out an out-of-band security update for Exchange Server that fixes a high-severity vulnerability (CVE-2026-96940) that may allow authenticated attackers to read emails and attachments of other users in the same organization, but “does not allow access across tenant boundaries.” CVE-2026-96940 was discovered internally and, according to the Exchange Server Team, they “are…
Help Net Security
Exploited
New NetScaler Zero-Day Exploited in Targeted Attacks Can Knock SAML Deployments Offline

October 5, 2026

Global Cyber Attacks, Global Cyber Security, Malware & Exploits, Zero-Day Vulnerabilities, Threat Intelligence

Citrix has released security updates for a high-severity security flaw in NetScaler ADC and Citrix 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 vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway…
The Hacker News
Exploited
Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

October 5, 2026

Enterprise & Cloud Security, Malware & Exploits, SOC & SIEM, Zero-Day Vulnerabilities, Threat Intelligence

Citrix has confirmed that a new zero-day vulnerability, CVE-2026-88779, emerged just days after two other exploited flaws were patched.
SecurityWeek
Exploited
Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

October 5, 2026

Automation & SOAR, Malware & Exploits, Zero-Day Vulnerabilities, AI & Emerging Technology, Threat Intelligence

Citrix has confirmed that a new zero-day vulnerability, CVE-2026-88779, emerged just days after two other exploited flaws were patched.
SecurityWeek
Exploited
Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

October 5, 2026

AI in Cybersecurity, Malware & Exploits, Zero-Day Vulnerabilities, AI & Emerging Technology, Threat Intelligence

Citrix has confirmed that a new zero-day vulnerability, CVE-2026-88779, emerged just days after two other exploited flaws were patched.
SecurityWeek
Exploited
Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

October 5, 2026

Global Cyber Security, Malware & Exploits, Nation-State Threats, Zero-Day Vulnerabilities, Threat Intelligence

Citrix has confirmed that a new zero-day vulnerability, CVE-2026-88779, emerged just days after two other exploited flaws were patched.
SecurityWeek
Exploited
Citrix patches NetScaler SAML zero-day exploited in attacks

October 4, 2026

Cyber Security News, Global Cyber Attacks, Global Cyber Security, Malware & Exploits, Zero-Day Vulnerabilities, Threat Intelligence

Citrix has released emergency updates for a new NetScaler denial-of-service vulnerability tracked as CVE-2026-88779 that has been exploited in zero-day attacks, with researchers investigating whether it can also be exploited for remote code execution.
BleepingComputer

ShinyHunters’ exploitation of a new PeopleSoft zero-day hole threatens to change enterprise risk dynamics

Citrix discloses third actively exploited NetScaler zero-day in less than a week

Citrix NetScaler security snafus get even worse amid more 0-day reports

U.S. CISA adds Citrix NetScaler flaw to its Known Exploited Vulnerabilities catalog

Citrix warns of actively exploited NetScaler flaw days after zero-day patch rush

Out-of-band Exchange Server update fixes high-severity mailbox access bug (CVE-2026-96940)

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

Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

Exploitation of Citrix NetScaler Zero-Day Hits Appliances Patched Days Earlier

Citrix patches NetScaler SAML zero-day exploited in attacks

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