Patch for Windows Defender 0-day could allow attackers to fill hard disk
2026-07-11T20:51:43Z•8c63922bb383679c226d7d7ced41159238a01d293655faa96ab42cc15582fae4
AI securityLLM hallucinationLinux kernelPeopleSoftSecure BootTor C2USB malwareWindows Defenderbotnetcredentials leakdata breacheavesdropping vulnerabilityguest VM escapeinfostealermacOS malwarepost-quantum cryptoprivilege escalationprompt injectionsupply-chain/firmwarezero-day
What happened
Ars Technica's security feed (June–July 2026) highlights a string of high-impact vulnerabilities and active threats: Windows Defender 0-day patch that could be abused to fill disks, multiple Linux vulnerabilities including a guest‑VM escape and a one‑character kernel use‑after‑free leading to root, and a PeopleSoft 0‑day exfiltrating gigabytes. Coverage also details active malware and backdoors (Crypto Clipper spreading via USB/Tor), a new macOS infostealer (PamStealer), large credential breaches affecting major vendors, and high‑severity eavesdropping flaws in consumer audio devices. The feed
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- arstechnica_security
- Record identifier
- 8c63922bb383679c226d7d7ced41159238a01d293655faa96ab42cc15582fae4
- Enrichment time
- 2026-07-11T20:51:43Z
- AI-assisted enrichment
- Yes
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