The firewall admin signs in on a Monday and the password is wrong. It worked on Friday. The admin list now holds an account called something like forticloud-sync that nobody remembers creating. Someone knew a password that still worked. On 6 October 2026, the FBI and the US Secret Service published joint advisory JCSA-20261006-01 on FortiBleed, "an active, global credential-compromise campaign" against internet-facing FortiGate firewalls and SSL VPN gateways. SOCRadar, cited

CVE-2026-21589 lets unauthenticated attackers read files from eight Atlassian Data Center products. Patch now, block with the WAF regex, and hunt your access logs for the two-dot pattern.

Rejetto HFS CVE-2026-61500 lets attackers forge an admin cookie from a weak Math.random() signing key, then reach remote code execution. Versions 3.0.0 through 3.2.0 are affected; 3.2.1 fixes it. Four hunts to find the activity in your logs.

Zammad CVE-2026-102489 and CVE-2026-102490 chain a session hijack into root. CISA's deadline is today. Recheck the patch status, then run these four hunts.

FortiMail CVE-2026-104286 lets an unauthenticated attacker write files onto the appliance. Fortinet shipped the fixes on Oct 5. Patch now, then run these four hunts.

CVE-2026-76504 lets an unauthenticated attacker reach the Cisco SD-WAN Manager admin API with a single encoded request. Here is how the bypass works, how to mitigate it, and four hunts (Splunk, Kibana, Falcon, KQL) to find encoded logins in your logs.

Cisco ISE CVE-2026-76460 is on CISA KEV with a 19 September deadline, and the API it abuses never asked for an admin session. Patch the branch, then hunt the access logs for what arrived before you did: unauthenticated API calls, root, and credentials that moved.

ACTION BRIEF • WINDOWS ENDPOINTS If your organization uses Sogou Input Method for Windows, verify its version and investigate suspicious activity from before it was patched. A malicious link can exploit a vulnerable installation to deliver GRAYRABBIT, a backdoor that gives an attacker access in the signed-in user’s context. Your first three actions: identify affected devices, update the software, and check whether attackers used it before the update. Patching closes the repor

A software repository sits between the people who build software and the systems that run it. When that repository is compromised, the investigation needs to answer more than whether someone accessed a server. It needs to establish whether the company can still trust the identities, credentials, and artifacts passing through it. Recent Artifactory exploitation illustrates why. Two vulnerabilities allow an attacker to obtain a token and escalate its authority. A separate vulne

Hunt GitLab CVE-2026-85706: unauth commits API path traversal. POST /repository/commits with file.path. watchTowr ITW Sep 11. CISA KEV due Sep 14.

The process tree still sitting on the box is not a closed Chrome patch ticket. It is chrome.exe (or msedge.exe / brave.exe) spawning cmd.exe, which spawns curl.exe, which writes %TEMP%\msgbox.exe or %TEMP%\ChromeUpdate.exe and runs it. Proofpoint tracks that default BlueMoon breakout, and the follow-on loaders are what operators actually keep. A hot stable build does not rewrite a curl stub that already ran from the broker. This hunt shop is not a second CVSS recap, and it is

The traces still on the management plane are not a closed patch ticket. They are a Tomcat JSP named home.jsp that Base64-decodes F6C1F0E7, a package_info.pl line that runs /var/tmp/license.tmp --lsm as root, and a Python socks5.py reverse-SSH tunnel that forwards LDAP, Kerberos, SMB, and WinRM out of Secure Firewall Management Center into Active Directory. Cisco Secure Firewall Management Center centrally manages your Secure Firewall estate. CVE-2026-20079 is a critical authe

The leftover is not a failed checkout ticket. It is a process that looks like time sync, a cron line that restarts twice an hour, and a Payment Transaction Failed Reminder that already ran PHP while Magento rendered it. Nobody needed to open the message. Delivery can fail, and the planted code still executes. That is StyleSmuggler after the styles poison, not another Magento zero-day recap. Here is the plain version before the product jargon. An unauthenticated attacker poiso

The alert is wscript.exe, four short script names, and a Run key that looks like a Windows service helper. ScreenConnect is already on the box. Someone says helpdesk has a session. There is no ransomware family on the page, and the brand name on the client is the same one your techs use every day. That is when this chain wants you to call it a rogue RMM install and move on. Here is the plain version before the product jargon. A modified ScreenConnect client on one host watche

You know the ticket. Someone downloaded a video. The ticket says media. The player refuses to open it. Antivirus already shrugged and called it an MP4. There is no ransomware family name on the alert, and the user swears they never watched anything. That unfair case is when this chain wants you to close it and move on. Here is the plain version before the box jargon. The file is a fake video shell. It is stuffed with a script. It is not a clip you failed to open. It is a carr

Unit 42 published Spring Ring today, 31 August 2026. The activity in the report is from January through April. This is leftover tradecraft, not a weekend outbreak. If you are hunting it because the write-up is new, you are hunting a gap that has been sitting in Teams since winter. The gap is Chat with anyone plus a voice call that never hits the mail gateway. They are not phish-mailing IT. A throwaway .onmicrosoft.com tenant named like a helpdesk opens a Teams chat. Then a 10

You have seen this ticket. Print is still working. Someone applied the first emergency PaperCut patch when it dropped, the queue came back, and they closed it. The Application Server web UI is still on the internet because print admins do not like taking that box down twice in one week. That is the hunt. Not the CVE number. The hunt is the emergency patch that did not stay a patch. CISA put CVE-2026-81578 and CVE-2026-82078 on KEV on 31 August 2026. If you only ran Patch 1, y

Citrix NetScaler Gateway after a quiet nsppe crash. Hunt PHP under /var/vpn/theme. You have seen this ticket. VPN died, VPN came back, someone closed it as a blip. Citrix sold CVE-2026-8452 as a crash. CISA put it on KEV Monday. The federal clock is Saturday, 29 August. Builds with a fix: 13.1-63.21 or later, 14.1-73.32 or later. 12.1 and 13.0 have no fix. Patch is not the hunt. A patched box that already had a quiet respawn still needs the directory check. The hunt is not th

PhishLocker is a fake Windows lock screen. The password plus the tunnel is the prize. On 18 August, Expel caught SynkLoader off a scheduled-task EDR hit that started in Microsoft Teams and ended in a fake lock screen. The EDR alert was the first clean look at a loader nobody had published yet. File times and compile stamps ran back to about 28 July. They named it SynkLoader. No crew name came with it. How SynkLoader arrives in Microsoft Teams The user had already been talked

Learn how hackers use Microsoft 365 MFA bypass to gain access, add persistence, and exfiltrate data. Detect attacks with KQL queries and stop them fast.