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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
51 articles found
CVE-2026-5027
high
CVE AdvisoryVulnerabilityCVE-2026-5027 •Jun 11, 2026

HIGH: Langflow Path Traversal CVE-2026-5027 Lets Unauthenticated Attackers Plant Code on Roughly 7,000 Exposed AI Servers

A path traversal flaw in Langflow's POST /api/v2/files endpoint allows unauthenticated attackers to write files anywhere the platform process can reach, opening a clean route to remote code execution on the roughly seven thousand exposed instances Censys is currently tracking. Tenable disclosed CVE-2026-5027 in late March, the maintainers shipped a fix in version 1.10.0 on June 10, and VulnCheck honeypots are catching exploitation right now. Patch immediately or pull the instance off the public internet.

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CVE-2026-11645
high
CVE AdvisoryVulnerabilityCVE-2026-11645 •Jun 10, 2026

HIGH: Chrome V8 Zero-Day CVE-2026-11645 Under Active Exploitation, Patch Today

Google confirmed active in the wild exploitation of CVE-2026-11645, an out-of-bounds read and write vulnerability in Chrome V8 with a CVSS score of 8.8. The fifth Chrome zero day patched in 2026 lets attackers run code inside the browser sandbox via a crafted HTML page. Update to Chrome 149.0.7827.102 or .103 immediately and force a relaunch across the fleet.

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CVE-2026-20230
high
CVE AdvisoryVulnerabilityCVE-2026-20230 •Jun 7, 2026

HIGH: Cisco Unified Communications Manager SSRF Flaw Has a Public PoC and a Root-Level Punchline (CVE-2026-20230)

Cisco's June 3 advisory for CVE-2026-20230 details a critical-rated SSRF in the Unified Communications Manager WebDialer service, with a CVSS 8.6 base score and a public proof-of-concept already in circulation. An unauthenticated attacker on the network can write arbitrary files to the underlying OS and chain that into root. Cisco has released fixes in 14SU6 and an interim COP for the 15 line, with 15SU5 due in September 2026. Disabling WebDialer is the recommended interim mitigation.

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CVE-2026-20245
high
CVE AdvisoryVulnerabilityCVE-2026-20245 •Jun 6, 2026

HIGH: Cisco Catalyst SD-WAN Manager Zero-Day Under Active Exploitation, No Patch Available (CVE-2026-20245)

Cisco confirmed active exploitation of CVE-2026-20245, an unpatched command injection flaw in Catalyst SD-WAN Manager that lets authenticated attackers escalate to root and push malicious configurations to edge devices. The CVSS 7.8 bug is the seventh exploited SD-WAN zero-day since 2023 and chains with two prior auth bypass vulnerabilities to enable full remote takeover. No patch is available.

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CVE-2026-49975
high
CVE AdvisoryVulnerabilityCVE-2026-49975 •Jun 3, 2026

HIGH: HTTP/2 Bomb Vulnerability Lets a Home Connection Flatten NGINX, Apache, IIS, Envoy, and Cloudflare Pingora

A newly disclosed HTTP/2 vulnerability dubbed HTTP/2 Bomb lets a single client on a residential connection exhaust 32 gigabytes of server memory in under twenty seconds. The flaw, tracked as CVE-2026-49975 for Apache httpd, affects NGINX, Apache, Microsoft IIS, Envoy, and Cloudflare Pingora. NGINX and Apache shipped fixes. IIS, Envoy, and Pingora remain unpatched as of public disclosure on June 2, 2026.

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CVE-2026-0257
high
CVE AdvisoryVulnerabilityCVE-2026-0257 •May 31, 2026

HIGH: Palo Alto GlobalProtect Auth Bypass (CVE-2026-0257) Actively Exploited, Now on CISA KEV

A GlobalProtect authentication override flaw in PAN-OS lets unauthenticated attackers forge session cookies and walk into the VPN. Rapid7 observed two waves of in the wild exploitation in May, CISA added the bug to the KEV catalog on May 29 with a June 1 federal deadline, and Palo Alto Networks has confirmed active exploitation against unpatched devices.

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CVE-2026-9082
high
CVE AdvisoryVulnerabilityCVE-2026-9082 •May 23, 2026

HIGH: Drupal Core SQL Injection CVE-2026-9082 Hits CISA KEV Days After Disclosure

Drupal disclosed SA-CORE-2026-004 (CVE-2026-9082), a Highly Critical SQL injection in the core database abstraction API that lets unauthenticated attackers escalate privileges and reach remote code execution on PostgreSQL-backed sites. Imperva is tracking 15,000+ attack attempts against nearly 6,000 sites across 65 countries. CISA added the bug to KEV on May 22 with a federal patch deadline of May 27, 2026.

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CVE-2026-41091
high
CVE AdvisoryVulnerabilityCVE-2026-41091 •May 21, 2026

HIGH: Microsoft Defender Burns Again as Two New Zero-Days Hit Active Exploitation

Microsoft confirmed on May 21 that CVE-2026-41091, a CVSS 7.8 link-following privilege escalation in the Microsoft Malware Protection Engine, and CVE-2026-45498, a denial-of-service flaw in the Defender Antimalware Platform, are both under active exploitation. CISA added both to the KEV catalog with a June 3 federal remediation deadline. Defender engine version 1.1.26040.8 and Antimalware Platform 4.18.26040.7 contain the fixes and ship automatically through definition updates.

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CVE-2026-45585
high
CVE AdvisoryVulnerabilityCVE-2026-45585 •May 20, 2026

HIGH: Microsoft Ships Mitigation for YellowKey BitLocker Bypass Zero-Day (CVE-2026-45585)

Microsoft published mitigation guidance for CVE-2026-45585, the YellowKey BitLocker bypass zero-day publicly disclosed by researcher Chaotic Eclipse last week. The flaw lives in the FsTx Auto Recovery Utility inside Windows Recovery Environment and lets anyone with physical access and a USB stick spawn an unrestricted shell with the BitLocker-protected volume already mounted. Windows 11 24H2, 25H2, 26H1 and Windows Server 2025 are affected.

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CVE-2026-42897
high
CVE AdvisoryVulnerabilityCVE-2026-42897 •May 16, 2026

HIGH: Microsoft Exchange Server XSS Flaw CVE-2026-42897 Under Active Attack

Microsoft Exchange Server CVE-2026-42897 is a cross-site scripting flaw in Outlook Web Access that lets a crafted email execute JavaScript in the victim OWA session. CISA added it to the Known Exploited Vulnerabilities catalog on May 15, 2026 after confirmed in-the-wild exploitation, with a May 29 federal mitigation deadline. Exchange Server 2016, 2019, and Subscription Edition are affected. Exchange Online is not. Microsoft scored it CVSS 8.1, and patches shipped in the May 2026 security update.

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CVE-2026-6973
high
CVE AdvisoryVulnerabilityCVE-2026-6973 •May 11, 2026

HIGH: Ivanti EPMM CVE-2026-6973 Under Active Exploitation, CISA Mandates 3-Day Federal Patch Deadline

Ivanti has confirmed in-the-wild exploitation of CVE-2026-6973, an authenticated remote code execution flaw in on-premises Endpoint Manager Mobile rated CVSS 7.2. CISA added the bug to its Known Exploited Vulnerabilities catalog on May 7 and gave federal agencies until May 10, 2026 to remediate. The exploitation pattern strongly suggests reuse of admin credentials harvested during the unauthenticated EPMM compromises disclosed in January 2026.

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CVE-2026-43284
high
CVE AdvisoryVulnerabilityCVE-2026-43284 •May 9, 2026

HIGH: 'Dirty Frag' Linux Kernel Bugs Hand Locals Root, One Half Already Patched, RxRPC Half Still Open (CVE-2026-43284, CVE-2026-43500)

Two Linux kernel page-cache write bugs collectively named Dirty Frag let any unprivileged local user pop a root shell in one command. CVE-2026-43284 in xfrm-ESP was patched May 8. CVE-2026-43500 in RxRPC is still unpatched. Microsoft has already seen active exploitation in the wild and a public proof-of-concept is on GitHub.

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CVE-2026-23918
high
CVE AdvisoryVulnerabilityCVE-2026-23918 •May 7, 2026

HIGH: Apache HTTP/2 Double-Free (CVE-2026-23918) Lets Two Frames DoS Your Web Server, RCE Already Demoed

Apache HTTP Server 2.4.66 ships a double-free in mod_http2 that crashes worker processes with two HTTP/2 frames and no authentication. CVSS 8.8, DoS exploitation already in the wild, and a public PoC chain converts the bug to remote code execution on default Debian and Docker builds. The fix is in 2.4.67, released May 4.

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CVE-2024-1708
high
CVE AdvisoryVulnerabilityCVE-2024-1708 •Apr 29, 2026

HIGH: Storm-1175 Chains ConnectWise ScreenConnect Bugs to Drop Medusa Ransomware (CVE-2024-1708)

CISA added the two-year-old ConnectWise ScreenConnect path traversal flaw CVE-2024-1708 to its Known Exploited Vulnerabilities catalog on April 28, 2026, after China-aligned Storm-1175 was caught chaining it with the SlashAndGrab auth bypass CVE-2024-1709 to deploy Medusa ransomware through compromised MSP infrastructure. Federal agencies have until May 12 to remediate.

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CVE-2026-32202
high
CVE AdvisoryVulnerabilityCVE-2026-32202 •Apr 28, 2026

HIGH: APT28 Exploits Incomplete Windows Shell Patch for Zero-Click NTLM Theft (CVE-2026-32202)

Microsoft has confirmed active exploitation of CVE-2026-32202, a Windows Shell spoofing flaw that turns out to be an incomplete patch for an APT28 zero-day from earlier this year. The Russian GRU-linked group is using crafted LNK files to silently steal NTLM credentials with zero clicks, and the original April 14 advisory dramatically understated the severity until Microsoft corrected it on April 27.

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