FortiGuard Labs (Fortinet), Threat Research
fortinet-fortiguard-blog · B · active
https://www.fortinet.com/blog/threat-research
Added 2026-08-16 as this run's single new candidate. Named original-research primary for the Evooo1Bot Linux-botnet entry published this run, and the originating lab for several IoT/Mirai-derivative writeups cited by earlier fires without the publisher being tracked. Article bodies are client-rendered: a follow-up research pass reported the raw-HTML bridge returning only the page shell while WebFetch rendered it, but the main agent reached the full article body through `fetch_source.py url` on the same host later in the same run, so treat the bridge as working and WebFetch as the fallback. No RSS feed identified yet, worth another look before promotion. | 2026-08-16 weekly: candidate -> active. The state digest counted 10 distinct contributing runs, well past the 3-run promotion bar; promoted mechanically from the counted evidence per the allocation rule rather than by eyeball. | 2026-10-02 (2026-10-02T0404Z-intel): `extract` of /blog/threat-research returns undated teasers; the raw `url` fetch carries 'Month DD, YYYY' beside each card, so use `url` and regex the card dates. | 2026-10-06 (S3): in the raw `url` card list each card's author/date line comes AFTER its title, so pairing a date with the following title is off by one; attach each date to the preceding title or confirm on the article page.
Cited in 17 entries
Citation cadence
Citation days per ISO week (27 weeks of coverage span, total 14).
- DarkLunnen: Group-IB's exposed operator directory shows mass exploitation of FortiOS CVE-2024-55591 that plants a 'service' super_admin account, a 4,725-target Swiss FortiGate scan list and restic access to an S3 backup repository at a 'Swiss domain'; Group-IB does not confirm any Swiss victim2026-11-13
- CVE-2026-98432, Linux kernel IPv4 TCP: a use-after-free in connection setup, present since 4.4, has an Anthropic-built remote root exploit against MPTCP listeners that CloudLinux could not reproduce; Citrix XenServer, XCP-ng, MikroTik, Red Hat, Debian, CIQ, Amazon Linux, Ubuntu's generic kernels for 22.04 to 26.10 and Sophos have fixes, Ubuntu 20.04 and older and some HWE, FIPS, NVIDIA and Azure variant kernels are in progress and WatchGuard and Fortinet have none for their products (CVSS 9.8)2026-10-31
- Fortinet coordinated security hardening release: the advisories published on 2026-11-10 carry unauthenticated FortiMail, FortiAnalyzer, FortiManager, FortiOS and FortiAuthenticator flaws rated CVSS up to 9.8; FortiAnalyzer and FortiManager 8.0 have no fixed build for the JSON API flaw, FortiOS 7.0 and FortiMail 7.2 are left out of the October fixes2026-10-23
- Fortinet FortiSandbox GUI authentication bypass (CVE-2026-107656, CVSS 9.6) and FortiSIEM 7.5.0 unauthenticated path traversal to code execution (CVE-2026-106173, CVSS 9.4): both critical, fixed 2026-10-13, neither reported exploited2026-10-23
- k0t: Group-IB and NyxLab describe a probable access broker that mass-exploits FortiWeb and PAN-OS GlobalProtect, brute-forces FortiGate and decrypts stolen FortiGate configurations offline with the default key, with victims later listed by Qilin and The Gentlemen2026-10-22
- CVE-2026-109618 / CVE-2026-109619, PHP (PHP2Shell): two unauthenticated remote-code-execution flaws in the runtime, fixed on 2026-10-21 in 8.5.12, 8.4.27, 8.3.36 and 8.2.35, with attack traffic already observed and no upstream release for 8.1 and older (CVSS 4.0 9.2)2026-10-21
- PEERSTITCH: a memory-resident FortiGate implant installed through the FortiOS CLI path traversal CVE-2025-61624, which Fortinet lists as exploited and leaves unfixed on FortiOS 7.2, 7.0 and 6.4, after a FortiManager compromise exposed the configurations of 500+ firewalls2026-10-16
- CVE-2026-104286, Fortinet FortiMail: unauthenticated path traversal file write exploited as a zero-day, fixed in 8.0.2, 7.6.7 and 7.4.9 (CVSS 9.8)2026-10-02
- Evooo1Bot: a Mirai-derived Linux botnet whose exploit arsenal reaches Confluence, WSO2 and Kubernetes ingress-nginx, and whose SSH dictionary is stocked with enterprise service accounts rather than router defaults2026-08-16
- CVE-2025-68686, FortiOS SSL-VPN: the fix for the symlink-persistence technique is itself bypassable, and CISA now lists it as exploited2026-07-28
- FortiBleed: an active credential-compromise campaign against internet-facing FortiGate firewalls, now locking administrators out and supplying ransomware affiliates2026-06-18
- CVE-2026-25089, Fortinet FortiSandbox: unauthenticated OS command injection in the web UI's VNC-launch handler (CVSS 9.8 base)2026-06-12
- FortiGuard documents C0XMO, a cross-platform Gafgyt variant propagating through a five-year-old DD-WRT UPnP flaw2026-06-08
- FIFA World Cup 2026 pre-event threat cluster: Android banking trojans in pirated streaming apps, plus a 13,000-domain fraud layer, ahead of the 11 June kick-off2026-06-08
- FortiClient EMS CVE-2026-35616: exploited API authentication bypass used to push VPN on-connect scripts that drop EKZ Infostealer on managed endpoints2026-05-29
- CVE-2026-32996 & CVE-2026-32997, Veeam Backup & Replication KB4852: LPE in Windows Agent, arbitrary file write in Linux appliance2026-05-29
- CVE-2026-44277 and CVE-2026-26083: unauthenticated code execution in the Fortinet FortiAuthenticator API and the FortiSandbox web UI2026-05-13