Patch for Windows Defender 0-day could allow attackers to fill hard disk
2026-07-10T20:51:46Z•110b19d653d5fff6745330bd84d801f5fe9bee9dbec46d31cdc0506a92ffadee
2fa-bypassai-securityamdbotnetcopilotcredential-breachcrypto-clipperdata-exfiltrationdenial-of-servicehalluSquattinginfostealerlinux-kernelmemory-encryptionoperation-endgamepamstealerpatchpeoplesoftpost-quantum-cryptoprivilege-escalationsecure-bootthreat-actorsvm-escapewindows-defenderzero-day
What happened
Recent Ars Technica security coverage highlights multiple high-impact issues: a Windows Defender 0‑day patch that could be abused to fill victims' disks; a Google-paid bounty for a Linux guest-to-host VM escape (root privilege); several high‑severity Linux kernel bugs including a use‑after‑free from a single character; a PeopleSoft 0‑day used to exfiltrate gigabytes; a critical Copilot vulnerability that exposed 2FA codes; and a large credential breach affecting enterprises (Oracle, Lenovo, FedEx, Fortinet, etc.). Other notable items: emergence of PamStealer macOS infostealer, a new USB-spread
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- arstechnica_security
- Record identifier
- 110b19d653d5fff6745330bd84d801f5fe9bee9dbec46d31cdc0506a92ffadee
- Enrichment time
- 2026-07-10T20:51:46Z
- AI-assisted enrichment
- Yes
This record may overlap with other records. Its enrichment can be incomplete or wrong, and machine assistance was used. Validate consequential decisions against the linked source and your own environment.