Security Articles

Daily threat intelligence and vulnerability analysis from our security team. We publish expert breakdowns of critical CVEs, active exploits, and emerging attack campaigns as they happen.

Our analysts monitor vendor advisories, CISA alerts, and underground threat activity to give you actionable guidance you can use the same day. Filter by severity below to find what matters most to your environment.

Updated October 29, 2026 — all 245 published advisories are browsable here. The five drawing the most attention right now: North Korea’s Lazarus group breaching at least three companies through a fake job-candidate portfolio site that turned a trusted sign-in security plugin into the way in, then running its spying tools only in memory — there is no patch and no CVE, so remove security plugins nobody needs and tell HR and hiring managers that a polished résumé site followed by an “allow this plugin” prompt is a call to the security team, not a click; an attacker replaying stolen Microsoft 365 sign-in tokens (the pass Microsoft hands you after the password and multifactor prompt are already done) to take over 97 accounts at 79 organizations, registering rogue devices, swapping the multifactor app and hiding emails about payroll, direct deposit and bank details with inbox rules — there is no patch, because nothing is broken, and a password reset alone does not evict the attacker, so after any mailbox compromise also remove unknown devices and multifactor methods and check for hidden inbox rules; Apple finally fixing an actively exploited iPhone and iPad flaw on older devices that cannot run the newest iOS, a bug in how the device draws images that lets a booby-trapped file run an attacker’s code (CVE-2026-86950, rated 8.8 out of 10, on CISA’s actively exploited list since September 29) — the iPhone XS, XS Max and XR and several older iPads went about four weeks with no fix at all, and those hand-me-down phones and lobby tablets are the devices nobody checks, so find anything still on iOS 18 and update it to 18.7.11 this week; two emergency fixes for PHP, the language running underneath WordPress and most small-business websites and customer portals, after flaws nicknamed PHP2Shell let someone with no login take over the server (CVE-2026-109618 and CVE-2026-109619, each rated 9.2 out of 10) — attackers began trying them before the fixes shipped, and a fully patched website does not help if the PHP underneath it is old, so ask your web host or developer to confirm you are on PHP 8.5.12, 8.4.27, 8.3.36 or 8.2.35; and attackers planting backdoors on Nextcloud file-sharing servers through the built-in Collabora document-editing add-on, with no login, then hunting the company files for password vaults and crypto wallets (CVE-2026-110447, rated 9.2 out of 10, now on CISA’s actively exploited list) — the fix shipped September 11 but the warning only went out October 14, so update the add-on to 26.4.303 or remove it, then check for a backdoor, because on a server that was already hit the update is the start of the cleanup, not the end. Four of the five have already been used in real attacks, attackers are already trying the fifth, and for three of them (Lazarus, Microsoft 365 and Collabora) an update or a password reset alone does not make you safe. The cost is decided by how fast someone notices. If nobody is reading the alerts at 2 a.m., our 24/7 staffed security operations center handles the detection and the response.

Severity: All Critical High Medium Low
169 articles found
critical
CVE AdvisoryVulnerability•Sep 23, 2026

CRITICAL: F5 BIG-IP APM CVE-2026-94127 Exploited for Unauthenticated RCE

F5 is shipping emergency hotfixes for CVE-2026-94127, a heap-based buffer overflow in BIG-IP APM that hands unauthenticated attackers remote code execution on appliances acting as OAuth authorization servers. CISA added it to the Known Exploited Vulnerabilities catalog on September 22 and gave federal agencies until Friday. Shadowserver tracks more than 14,700 exposed BIG-IP APM fingerprints.

Read more
critical
CVE AdvisoryVulnerability•Sep 14, 2026

CRITICAL: MikroTik RouterOS Flaws Chained to Hijack Routers Over SSH

MikroTik patched CVE-2026-67276 and CVE-2026-86060, two CVSS 9.2 RouterOS SSH flaws that CERT Polska found chained in the wild into an unauthenticated full admin takeover dubbed MikroTrick. Exploitation began a day before fixes shipped, CISA added CVE-2026-86060 and CVE-2026-67277 to KEV, and roughly 122,500 devices expose SSH. Upgrade to RouterOS 6.49.21, 7.23.4 or 7.24.2 and audit for rogue accounts.

Read more
critical
CVE AdvisoryVulnerability•Sep 13, 2026

CRITICAL: ConnectWise ScreenConnect CVE-2026-84869 Under Active Attack

ConnectWise patched CVE-2026-84869, a CVSS 9.9 missing authorization flaw in the ScreenConnect client that lets files be pushed and executed during a live remote session without Host confirmation. Huntress linked it to worm-like campaigns that infect technicians who connect to compromised endpoints, and CISA added it to the KEV catalog on September 11. Upgrade to 26.6.5 and reinstall host clients.

Read more
critical
CVE AdvisoryVulnerability•Sep 11, 2026

CRITICAL: PaperCut Zero-Days Exploited to Breach 395 Organizations

PaperCut has shipped maintenance releases 26.0.5, 25.0.13, and 24.1.10 to replace three rounds of emergency patches for CVE-2026-81578 and CVE-2026-82078, two actively exploited flaws that chain into preauthentication remote code execution. Researchers tracked a campaign that compromised more than 440 instances at 395 organizations across 48 countries, reaching domain admin at one school in seven minutes.

Read more
critical
CVE AdvisoryVulnerability•Sep 10, 2026

CRITICAL: Cisco Firewall Management Center CVE-2026-20079 Under Active Attack

CISA added Cisco Secure Firewall Management Center flaw CVE-2026-20079 to its Known Exploited Vulnerabilities catalog on September 9 with a September 12 federal remediation deadline. The CVSS 10.0 authentication bypass chains a static boot-time session ID and hardcoded credentials into unauthenticated root code execution on the appliance that manages your firewall policy. Patches have been available since March.

Read more

Is Your Mobile App Secure?

Our CyberOne MobileAssess platform performs deep static analysis, source code decompilation, and runtime security testing for iOS and Android apps. From one-time assessments to year-long continuous testing, we find what surface-level scanners miss.

PreviousPage 2 of 9Next

Stay Informed

Subscribe to our newsletter and get the latest security insights delivered to your inbox.