Cybersecurity News

(c) SANS Internet Storm Center. https://isc.sans.edu Creative Commons Attribution-Noncommercial 3.0 United States License.

Discover how Bring Your Own Vulnerable Driver (BYOVD) tactics evolved from lone-operator tricks into a commercialized, tiered EDR-killer service economy.

Read why effective AI governance demands tamperproof, hardware-rooted security controls that autonomous agents cannot reach, bypass, or rewrite at runtime.

The native Sublime Security integration sends email detections into Elastic Security, where phishing incident response can tie a quarantined email to what happens next on the endpoint and pull the threat from every mailbox it reached.

Categories: Threat ResearchTags: advisory, vulnerability, Citrix

Recorded Future launches Model Context Protocol (MCP), providing AI agents and LLM workflows direct access to the Intelligence Graph® for accurate, automated decision-making.

On Friday I gave the closing keynote at the WeAreDevelopers World Congress North America in San Jose. I tied together the key trends from the past year into a chronological exploration of everything that happened in 2026. The video is on YouTube; here are my annotated slides and notes to accompany the talk. And as an annotated presentation: # I'm going to give a lightning tour of everything that has happened so far in 2026. The year isn't over yet! # For me, 2026 started a couple of months earlier in November 2025. # November saw the release of two important models: Claude Opus 4.5 and GPT-5.1. As is usually the case with new models, these were incremental improvements on the models that came before them. But every now and then when a model improves, it crosses an invisible line where something that didn't really work starts working. In this case, the thing that started working was their coding agents. Claude Code had been around since February 2025

OpenAI is testing a new always-on assistant called "o", and references to the unannounced feature briefly showed up on the company's website. [...]

Citrix has confirmed that two critical NetScaler remote code execution vulnerabilities, tracked as CVE-2026-88771 and CVE-2026-88772, are being exploited in attacks and that it has released security updates to fix the flaws. [...]

Wireshark release 4.6.9 fixes 19 vulnerabilities and 16 bugs.

Cloudflare has fixed a vulnerability in Containers and Sandboxes that allowed customers with a Workers Paid account to recover residual data from other customers' containers on the same physical host. [...]

Anthropic has just announced a new Claude Marketplace, and it brings all AI-related tools into one place, including plugins, connectors, agents, and more. [...]

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2026-88771 Citrix NetScaler Improper Input Validation Vulnerability CVE-2026-88772 Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.Binding Operational Directive (BOD) 26-04: Prioritizing Security Updates Based on Risk establishes vulnerability management requirements for Federal Civilian Executive Branch (FCEB) agencies. BOD 26-04 reinforces the importance of the KEV Catalog and requires federal agencies to prioritize rapid remediation of high-risk vulnerabilities, specifically those identified by Common Vulnerabilities and Exposures (CVEs) listed in CISA’s KEV Catalog on publicly exposed assets that grant total control of the asset post-exploitation, wh

CISA is amplifying Citrix’s disclosure of eight new vulnerabilities affecting Citrix NetScaler ADC and Citrix NetScaler Gateway products: CVE-2026-88771, CVE-2026-88772, CVE-2026-88773, CVE-2026-88774, CVE-2026-88775, CVE-2026-88776, CVE-2026-88777, and CVE-2026-88778.  CISA has added CVE-2026-88771 and CVE-2026-88772 to its Known Exploited Vulnerabilities (KEV) Catalog. Both are critical, zero-day vulnerabilities that can independently enable remote code execution. CISA has received reports and partner threat intelligence confirming that threat actors are actively exploiting these vulnerabilities globally. Because updating Citrix NetScaler appliances can be complex and may require downtime, CISA is issuing this Alert to help organizations assess exposure, prioritize mitigation, and account for these vulnerabilities into their risk-management activities.  Given the potential consequences of successful exploitation and the fact that malicious actors are exploiting at least some of t

CISA added CVE-2026-65660 to its KEV catalog, giving federal agencies a patching deadline of September 28. The post Microsoft SharePoint Flaw CVE-2026-65660 Now Exploited in Attacks appeared first on SecurityWeek.

The ShinyHunters extortion gang is using a URL-encoding trick to bypass web application firewall rules that mitigate the Oracle PeopleSoft CVE-2026-35273 flaw, allowing the threat actors to resume widespread exploitation of a flaw on vulnerable servers. [...]

The US and China agreed to set up a communication mechanism for artificial intelligence-related incidents. The post China and US Agree to Establish AI Safety Channel and Continue Trade and Military Talks appeared first on SecurityWeek.

Anthropic's Claude Opus 5.5 appears to be changing how it writes, with new analysis showing fewer obvious AI writing patterns, shorter sentences, and simpler wording compared with Opus 5. [...]

Microsoft has paused the rollout of the KB5002907 Microsoft 365 update after users report that it deactivated, or in some cases completely removed, perpetual Office 2016 and Office 2019 installations. [...]