Skip to content
Veteran-Owned. Built by engineers who've actually done the work.
02 / Threat Briefs

What's on the wire,
plainly told.

Carbynix publishes a brief whenever something material crosses the wire. Each is drafted by our structured-reasoning pipeline from primary sources and customer-environment telemetry. If you find an error, tell us — we'll correct it within 24 hours.

Severity
Sector
  1. CISA adds Fortinet FortiOS auth bypass to KEV — what to do this week

    An authentication bypass in FortiOS SSL-VPN was added to CISA's KEV catalog after observed exploitation. Federal agencies have 21 days to remediate. Carbynix Guardian and Fortress customers are already covered by detection rule CBNX-FORT-244.

    critical CVE-2025-32756 Actors UNC-3886 (suspected) Sectors Federal · Healthcare · Manufacturing
  2. Okta cross-tenant token leak — what your IdP logs should show

    A logging defect in Okta's admin console briefly exposed bearer tokens between tenants. We walk through what to grep for in System Log between April 11 and April 23.

    high CVE-2026-29104 Sectors SaaS · Financial Services · Law Firms
  3. A conditional-access bypass that survives password reset

    A persistent OAuth grant pattern observed across three customer tenants this week. Resetting credentials does not revoke the implant — here is the cleanup runbook.

    high Actors Storm-1247 Sectors Financial Services · Healthcare
  4. Cisco ASA / FTD pre-auth memory corruption — added to KEV

    Pre-auth RCE in the WebVPN SSL handler. We're seeing scanning from three known initial-access broker IP ranges. Patch level required: ASA 9.20.2.10, FTD 7.4.2.

    critical CVE-2026-20114 Actors Initial-access brokers Sectors Federal · Manufacturing
  5. The MSP supply-chain shift: ransomware-as-a-vendor

    A ten-week look at how four ransomware crews are explicitly targeting MSPs as their preferred initial-access vector — and the four telemetry signals that catch it before customer environments ignite.

    medium Actors BlackCat (rebranded) · Akira Sectors MSPs · SaaS
  6. ABA Formal Opinion 512 — what it changes for AI use at law firms

    A plain-English read of ABA Formal Opinion 512, with concrete posture changes most firms will want to make to the technology section of their engagement letter.

    low Sectors Law Firms