CVE-2026-51990 is a critical one-click RCE in Tencent’s Sogou Input Method for Windows that UNC3569 exploited through a crafted sgbiz: link to load a malicious page and deploy the GRAYRABBIT backdoor. Gen Digital said the chain used biz_helper.exe, SGMyInput.exe, and an outdated, unsandboxed Chromium 80 browser path with disabled web-security protections to reach code execution. Gen reported the issue to Tencent on April 9, 2026, and Tencent completed a fix in version 16.3.0.3498 on April 21, 2026. The patch validates protocol-handler URL arguments, allows only HTTPS, and restricts navigation to approved Sogou and Tencent domains, while the broader browser-engine weakness remained in place.

UNC3569 is using a crafted sgbiz: link to exploit Tencent’s Sogou Input Method for Windows and deploy the GRAYRABBIT backdoor. Gen Digital says the activity involves CVE-2026-51990, a one-click RCE flaw chained through a protocol handler, an unrestricted webview navigation path, and an outdated Chromium 80 engine running without a sandbox. The research says Tencent received the report on April 9 and released version 16.3.0.3498 on April 21 to validate URL arguments, allow only HTTPS, and restrict navigation to approved Sogou and Tencent domains. Gen Digital also said the sample it analyzed was a more mature 64-bit GrayRabbit variant with an expanded command set and RC4-encoded C2 configuration.

Sogou Input Method on Windows was exploited through a crafted sgbiz: link that reached CVE-2026-51990, giving attackers code execution with the logged-in user's privileges and leading to GRAYRABBIT installation. The same intrusion chain also used CVE-2021-38003 in the product's Chromium-based browser path, and available material ties the operation to UNC3569. The flaw was reported to Tencent in April 2026, and the vendor said a fix was completed in version 16.3.0.3498 and pushed through automatic update. Public details still leave open the full affected-version range and whether broader browser-engine weaknesses inside the product create additional exposure beyond the closed link-handler path.

Microsoft disclosed two coordinated phishing campaigns that used third-party email delivery infrastructure and passkey-themed social engineering to target U.S. enterprise users, raising the risk of payment fraud and cloud account compromise. One wave sent over a million scam emails in August 2026 by impersonating CEOs and pushing fake ACH transfer requests. A separate operation active since May 2026 used counterfeit sign-in pages, AitM and device-code flows, and attacker-controlled MFA enrollment to seize Microsoft cloud accounts. The activity also enabled Graph API reconnaissance and data collection from SharePoint Online, OneDrive, and mailboxes.

Check Point began delivering fixes on September 9 for CVE-2026-85102 and CVE-2026-85103, two critical VPN certificate flaws in Security Gateways and Security Management Server. The release addresses unauthenticated remote code execution risk and gives customers remediation through Check Point Live Patch or the latest Jumbo Hotfix. Affected deployments include R82.10 / Jumbo Hotfix Take 43 or below, R82 / Take 125 or below, and R81.20 / Take 165 or below. Check Point says it found both issues itself and has no indication of attack use.

The AI-themed phishing campaign used familiar AI brand names as lures and was observed across multiple customers during the study window. The emails relied on subject lines featuring the biggest names in AI, turning routine product familiarity into a phishing pretext. The operation mattered because it showed a distinct attack thread separate from the broader noise of legitimate AI activity.

SOC teams using AI tools and agents are being told to tune legacy detections and hunt risky AI activity because routine agent work is flooding alert queues while exposing real credential and data-risk paths. The guidance focuses on reducing false positives without missing permission-bypass flags, unauthorized tunnels, and risky OAuth grants. It also pushes teams to limit what can be shared with third-party AI platforms and to isolate agent workloads to shrink blast radius.

Enterprise SOCs are seeing a fast-rising stream of AI-related alerts, and the trend is increasing triage burden even though it remains a small share of total volume. The measured slice reached 0.43% of SOC alerts and climbed 685% between February and June 2026. Most of the new activity is noise, but the growth is large enough to bury the small set of genuine exposures.

The GemStuffer campaign tied to OpenAI agents expanded across RubyGems in May-June 2026, using repeated package publishing and documentation-build abuse to move data off-platform and reach RubyDoc.info servers. The operation matters because it combined coordinated package submissions, public-data scraping, and API-key theft attempts into a persistent multi-stage abuse pattern. It also touched multiple bursts of activity, showing more than a one-off upload spree.

RubyDoc.info suffered a package-triggered compromise that enabled arbitrary remote code execution on its servers and let attackers scrape and stage data through the documentation build path. The abuse ran during May-June 2026 and turned a trusted build workflow into an execution foothold. The resulting access increased the risk of unauthorized data handling and further abuse of the service.

RubyDoc.info's documentation build process was abused through a .yardopts design quirk, enabling arbitrary remote code execution on build servers. The flaw let attackers turn gem documentation requests into code execution and exfiltrate public data from U.K. government websites. The abuse was observed during May-June 2026 and affected the service that builds documentation for submitted gems.

A ShinyHunters- and Helix-linked campaign is using passkey and SSO-themed social engineering to compromise corporate Microsoft accounts, exposing Microsoft 365 data and connected cloud access across multiple organizations. The operation has been active since May 2026 and relies on phone and message lures that impersonate IT help desks. Victims are steered to fake Microsoft login pages, AiTM phishing, or device-code abuse to capture credentials and session tokens. Compromised identities are then used for cloud reconnaissance and data theft.

JFrog Artifactory is in an active exploitation wave involving CVE-2026-42018 and CVE-2026-42016, where attackers used the flaws to move from low-privilege access to administrator control on self-hosted Artifactory systems between August 15 and September 8, 2026. The activity includes rapid token abuse and account creation across multiple environments, and Wiz says attackers also chained CVE-2026-82329 to take admin control and deploy backdoors. CISA has since added the Artifactory flaws to its KEV catalog after reports of active exploitation. Related reports also describe post-exploitation use of malicious Groovy plugins, Rust-based backdoors, and compromise of vulnerable instances.

JFrog Artifactory flaws CVE-2026-42018 and CVE-2026-42016 were tied to active exploitation against self-hosted servers, with attackers chaining them to bypass authentication, steal JWTs, and reach admin-level access. The exploitation was observed between August 15 and September 8, 2026, and related activity also involved CVE-2026-82329 for administrator-token abuse. CISA later added the Artifactory flaws to its KEV catalog, and defenders were urged to upgrade immediately and hunt for rogue accounts, token creation, and suspicious plugin activity.

A custom Rust backdoor was dropped on compromised JFrog Artifactory servers, giving attackers C2-enabled remote control and persistence. The malware was deployed after intruders obtained administrative access, making the compromise more durable and harder to evict. The activity affected self-hosted Artifactory instances during the observed intrusion window from August 15 to September 8, 2026.

A coordinated industrial-scale distillation campaign against Claude is extracting reasoning and tool-use outputs to train competing models, increasing the risk of unauthorized capability transfer at massive scale. The operation spans multiple China-based AI labs and uses fraudulent accounts, proxy services, and stolen or purchased credentials to mask access. Observed activity includes millions of exchanges and repeated waves against Claude Opus 4.6 and 4.7. The harvested transcripts include sensitive conversations and advanced reasoning traces that can be reused in follow-on training.

An Iranian actor, GTG-30006, used Claude.ai to build malware, a delivery pipeline, and a phishing portal targeting domestic Iranians, increasing the risk of credential theft and Windows implant deployment. The operation included a fake ESET NOD32 login page that sent captured credentials to Telegram, a ClickFix-style Windows Run dialog lure, and geofenced delivery pages. The actor also built SECOMS64, a modular Windows implant with keylogging, screenshot capture, and Chrome credential extraction capabilities.

Anthropic says Claude AI was abused by multiple threat groups, including ShinyHunters, Midnight Blizzard, and GTG-10007, for credential harvesting, reconnaissance, phishing, malware development, exploit development, and data exfiltration. The report says the activity ran from December 2025 to August 2026 and shows AI use moving beyond prompting into multi-agent automation that executed much of the workflow. In one ShinyHunters-linked case, a pipeline on 10 AWS EC2 workers mass-downloaded 1.8 million Android APKs, scanned them with TruffleHog, and routed verified secrets to Telegram. Anthropic also says the same period included abuse to obtain 2,100+ Azure AD token sets tied to 40+ Microsoft tenants and at least 1TB of stolen data.

A North African government technology authority suffered a data leak after attackers hijacked its central account server and exfiltrated a credential database containing over 300,000 national identity records and more than half a million company registry records. The exposed data raises the risk of identity abuse, account takeover, and downstream targeting of listed people and companies. The compromise was reached through VPN appliance credentials and was attributed after the intrusion.

A phishing campaign abused Microsoft 365 Direct Send to deliver 29,785 confirmed phishing emails across July and August 2026, with activity clustering during US Eastern business hours. The operation matters because the messages could appear to come from trusted internal senders while bypassing normal email security gateways. One observed message reached 900 recipients in a single send.

GitLab issued immediate upgrade guidance for self-managed GitLab installations after fixing two security issues in GitLab CE and GitLab EE. Operators were told to move to 19.3.2, 19.2.6, or 19.1 without delay. The guidance reduces exposure to CVE-2023-2825 and CVE-2026-87719, which can enable arbitrary file reads or sensitive credential theft under certain conditions.

GitLab has a maximum-severity path traversal vulnerability, CVE-2023-2825, that can let unauthenticated attackers read arbitrary files from vulnerable servers under certain conditions. The flaw affects the repository commits API and exposes GitLab Community Edition (CE) and Enterprise Edition (EE) deployments until they are patched. GitLab says self-managed installations should upgrade immediately because fixed builds are now available.

GitLab released fixes for CVE-2023-2825 and CVE-2026-87719 in GitLab Community Edition (CE) and Enterprise Edition (EE), requiring self-managed installations to upgrade immediately. The patch release addresses both a maximum-severity path traversal flaw and a critical insecure deserialization issue.

Microsoft fixed a launch failure that caused Teams and the new Outlook for Windows to fail to open or close unexpectedly on ARM-based Windows devices after August 11, 2026 updates. The disruption affected Windows 11 24H2 or later systems, especially new or freshly imaged PCs that had not yet installed Microsoft Store updates. Microsoft later said the issue was resolved in KB5124012 and newer updates. The company also pointed customers to the Auto Super Resolution Package as a temporary workaround.

UK and US organizations are deploying Copilot and other Microsoft 365 AI tools faster than they are reviewing permissions, widening exposure to broadly shared content. Only 43% completed a thorough oversharing review before rollout, while 91% say they can see active agents and their reach. Access governance is even thinner for agent controls: just 22% have a formal policy, and 9% let an agent inherit the deployer's full permissions. The pattern leaves sensitive SharePoint and file content reachable through AI surfaces that inherit existing access.

Midnight Blizzard ran a Claude-assisted cyberespionage campaign that automated malware evasion and kept the operation active across more than 20 organizations. The activity reached government ministries, defense and intelligence bodies, embassies, and think tanks across Europe, the Middle East, and Asia. Anthropic said it disrupted the campaign after tracking it from December 2025 to August 2026 and used the findings to strengthen its safeguards.

A Brevo-abused phishing campaign targeted Trezor newsletter subscribers with fake security-alert emails, reaching 347,000 email addresses and driving 2,500 clicks before takedown.

The GRAYRABBIT backdoor was deployed in a live intrusion against Sogou Input Method users, giving attackers a remote command shell and the ability to stage additional modules. The payload turned a Windows exploit chain into persistent attacker access on victim machines. The backdoor traffic was tied to mail.uaiubifas[.]top on port 443, raising monitoring value for defenders.

PaperCut NG/MF vulnerability activity now includes active exploitation of CVE-2026-81578 and CVE-2026-82078, an authentication bypass and remote code execution chain affecting exposed instances. PaperCut issued a second emergency patch and told operators to remove public internet exposure and restrict PaperCut Application Server access to trusted IPs or a VPN. The latest reporting says a suspected Russian-speaking actor used OpenAI Codex and a DeepSeek model to research, validate, and deploy exploits, then compromised at least 440 instances across 395 victim organizations in 48 countries, with education-sector victims in the U.S., the U.K., France, Spain, Canada, Belgium, Portugal, Australia, Germany, and Switzerland. Earlier observed post-exploitation activity included a Java `.class` file, Base64-encoded commands, and commands such as `whoami & ver & tasklist` on a PaperCut target.

The Mantax Otax Android malware now combines ransomware and spyware features, putting older Android devices at risk of file encryption, data theft, and harassment. It spreads through malicious APKs outside Google Play and uses phishing and social engineering to push installation, then requests Accessibility permission for deep device control. The malware pulls its C2 from GitHub, can issue commands through Firebase or WebSockets, and is already detected and blocked on up-to-date devices with active Play Protect.