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FreeBSD CVE-2026-42511 — NFS Stack Vulnerability Affecting Network Appliances and BSD-Based Storage
A new vulnerability in FreeBSD's NFS networking stack has been disclosed as CVE-2026-42511, distinct from the previously covered CVE-2026-4747 (the 17-year-old NFSv4 daemon RCE). CVE-2026-42511 affects the NFS client implementation and is exploitable by a malicious NFS server to achieve code execution on FreeBSD hosts connecting to untrusted NFS mounts — a relevant threat model for enterprise environments mounting network storage from potentially compromised infrastructure.
Microsoft Edge Stores Saved Passwords as Plaintext in Process Memory — No CVE, No Patch
Security researchers have documented that Microsoft Edge's built-in password manager stores user-saved passwords in cleartext within the browser's process memory — readable by any process on the same system with the ability to dump Edge process memory. Microsoft has acknowledged the behaviour and characterised it as a performance design decision, not a vulnerability warranting a security fix. Users relying on Edge's password manager for credential storage should understand what this means for their threat model.
MicroStealer Infostealer Targets Education and Telecom via Discord Webhook Exfiltration
ANY.RUN analysts have documented MicroStealer, an infostealer active since December 2025 that specifically targets education and telecommunications sector organisations. MicroStealer uses multi-stage delivery, harvests browser credentials, session tokens, cryptocurrency wallets, and screenshots, and exfiltrates data exclusively via Discord webhooks — making it invisible to traditional network monitoring that blocks dedicated C2 domains. Detection rates on VirusTotal remain low.
pnpm 11 Defaults to 24-Hour Package Age Minimum — Blocking Automated Post-Publish Supply Chain Attacks
pnpm 11, released this week, introduces a package quarantine feature that by default blocks installation of any npm package published within the past 24 hours. The control targets the automated post-publish compromise pattern used by TeamPCP, CanisterSprawl, and similar supply chain threat actors who publish malicious package versions and immediately trigger mass installation before defenders can respond. It is the most substantive supply-chain-defensive default configuration added to a package manager since npm's provenance attestation.
Proton Mail Adds Post-Quantum Encryption for New Emails to Counter Harvest-Now-Decrypt-Later Attacks
Proton Mail has added optional post-quantum encryption for new emails sent between Proton Mail accounts, protecting against harvest-now-decrypt-later (HNDL) attacks in which adversaries collect encrypted communications today with the intention of decrypting them when sufficiently powerful quantum computers become available. The feature uses the CRYSTALS-Kyber (ML-KEM) algorithm standardised by NIST in 2024. Existing encrypted emails are not retroactively re-encrypted.
Calendly-Themed AiTM Phishing Kits Rise with Real-Time Socket.IO and Telegram Exfiltration
urlscan.io researchers have documented a surge in phishing kits impersonating Calendly booking pages, used as a step in multi-stage AiTM credential theft chains targeting enterprise users. The kits use real-time Socket.IO connections for live victim monitoring, fake CAPTCHA challenges for victim fingerprinting, and Telegram bot webhooks for credential exfiltration — a combination that makes the attack infrastructure highly operationally efficient while appearing to originate from legitimate Calendly sessions.
CallPhantom: 28 Fake Android Apps with 7.3M Play Store Downloads Charged for Fabricated Call Data
ESET researchers have identified 28 Android applications — collectively downloaded 7.3 million times from the Google Play Store — that charged users for access to fabricated call history, SMS logs, and WhatsApp message records that the apps could not actually retrieve. The CodedCallPhantom campaign, active primarily in India and South-East Asia, combines financial fraud (charging for non-existent data) with personal data collection used for follow-on targeting.
Fake OpenAI Repository on Hugging Face Reached #1 Trending, Delivered Rust Infostealer to 244,000 Users
A malicious repository impersonating an official OpenAI project reached the top trending position on Hugging Face before being removed — delivering a Rust-compiled infostealer to an estimated 244,000 users who executed the repository's loader script. The attack exploited Hugging Face's trending algorithm and the high trust developers place in repositories attributed to the OpenAI organisation. Affected users should rotate all credentials accessible from the compromised machine.
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Post-Quantum Cryptography: The Decision Is Not Whether to Migrate, It Is When to Start Counting
Proton Mail's post-quantum encryption launch is another data point in an accelerating migration across email, messaging, and enterprise security platforms. The industry debate has shifted from 'should we?' to 'how urgent is the harvest-now-decrypt-later threat?' For most organisations the answer is more urgent than their current roadmap reflects — because the data being generated today has a longer confidentiality requirement than the planning horizon that informs most security investment decisions.
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AI Platforms Inherited the npm Trust Model and Its Problems Are Arriving on Schedule
A fake OpenAI repository reached #1 trending on Hugging Face and delivered an infostealer to 244,000 users. This was predictable. The AI/ML developer ecosystem adopted the open-publishing, community-trust model of package registries without adopting the hard-won security lessons those registries learned over the past decade. The attack surface Hugging Face presents in 2026 looks remarkably like the attack surface npm presented in 2016.
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CVSS 10.0 Vulnerability in Industrial IoT Platform Allows Unauthenticated Takeover of OT-Connected Systems
A maximum-severity (CVSS 10.0) vulnerability in Eclipse BaSyx — industrial automation software used to connect IT and manufacturing systems under Industry 4.0 programmes — allows an internet-accessible attacker to take complete control of the software and the systems it is connected to, without any credentials. A companion vulnerability allows the attacker to probe the manufacturing network from the internet, bypassing network controls. Organisations running BaSyx as part of smart factory or Industry 4.0 programmes must patch immediately.
Two Enterprise Products Added to US Exploited Vulnerabilities List This Week — Ivanti MDM and AI Gateway
CISA added two enterprise products to its Known Exploited Vulnerabilities catalogue this week: Ivanti EPMM (mobile device management platform) and LiteLLM (AI gateway proxy). Active exploitation of both has been confirmed. The LiteLLM addition is significant as the first AI infrastructure component to enter KEV, reflecting the rapid adoption of AI tooling into enterprise production environments and the corresponding attacker interest.
Linux Zero-Day 'Dirty Frag' — All Major Linux Distributions Vulnerable, No Patch Available
A new zero-day privilege escalation vulnerability in the Linux kernel, nicknamed Dirty Frag, has been publicly disclosed with a working proof-of-concept exploit. Unlike previous Linux kernel flaws, Dirty Frag is deterministic — it reliably succeeds on the first attempt, without requiring timing tricks. Every major Linux distribution (Ubuntu, Red Hat Enterprise Linux, CentOS, Fedora, openSUSE) is currently vulnerable, and no patch is available. Any person with a local account on a Linux server can use this to become a system administrator.
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