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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 July 31, 2026 — 169 published advisories, with new analysis most weekdays. Recent coverage includes a Cisco Secure Firewall Management Center zero-day already under active exploitation (CVE-2026-20316), an OpenWrt DHCPv6 flaw that hands over root without any authentication (CVE-2026-53921), a pre-authentication remote code execution bug affecting every on-premises JetBrains TeamCity build server (CVE-2026-63077), a CVSS 10.0 Arista VeloCloud Orchestrator flaw already exploited in the wild (CVE-2026-16812), and the fastjson deserialization remote code execution bug still shipping without a patch (CVE-2026-16723). If one of these touches a system you run and you are not sure what to do next, our 24/7 staffed security operations center handles the triage for you.

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100 articles found
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-2026-0300
critical
CVE AdvisoryVulnerabilityCVE-2026-0300 May 6, 2026

CRITICAL: Palo Alto PAN-OS Zero-Day Hands Attackers Root on Internet-Facing Firewalls (CVE-2026-0300)

CVE-2026-0300 is an unauthenticated buffer overflow in the PAN-OS User-ID Authentication Portal that grants root code execution on PA-Series and VM-Series firewalls. Palo Alto has confirmed limited in-the-wild exploitation against internet-exposed portals. CVSS scores 9.3 for internet-exposed deployments, 8.7 for trusted-network only. Patches roll out from May 13 through May 28, 2026.

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critical
CVE AdvisoryVulnerabilityMay 2, 2026

CRITICAL: Google Patches CVSS 10 Gemini CLI Flaw That Turned CI Workspaces Into Free RCE

A maximum severity CVSS 10.0 flaw in Google Gemini CLI headless mode let any attacker who could drop a .gemini directory into a CI workspace execute code on the runner host. Tracked as GHSA-wpqr-6v78-jr5g, it is fixed in @google/gemini-cli 0.39.1 and 0.40.0-preview.3, plus run-gemini-cli action 0.1.22. Patch immediately and rotate any secrets reachable from affected pipelines.

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critical
CVE AdvisoryVulnerabilityMay 1, 2026

CRITICAL: Google Gemini CLI Earns CVSS 10 By Trusting Every Folder It Touches

Google patched a CVSS 10.0 remote code execution flaw in the Gemini CLI that let attackers hijack CI/CD pipelines through malicious .gemini/ configurations in untrusted workspaces. The advisory ships under GHSA-wpqr-6v78-jr5g without a CVE assigned, and any organization running the run-gemini-cli GitHub Action without a pinned version was carrying the vulnerable code by default.

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CVE-2026-3854
critical
CVE AdvisoryVulnerabilityCVE-2026-3854 Apr 30, 2026

CRITICAL: GitHub Enterprise Server RCE via a Single Git Push (CVE-2026-3854)

Wiz researchers disclosed CVE-2026-3854 on April 28, a critical remote code execution flaw in GitHub Enterprise Server that turns a single authenticated git push into full server compromise. Roughly 88 percent of internet-exposed Enterprise Server instances were unpatched at disclosure. GitHub.com and Enterprise Cloud are already fixed, but self-hosted admins must upgrade to 3.14.25, 3.15.20, 3.16.16, 3.17.13, 3.18.7, 3.19.4, or 3.20.0.

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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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CVE-2026-28950
high
CVE AdvisoryVulnerabilityCVE-2026-28950 Apr 23, 2026

HIGH: Apple Patches iOS Notification Bug That Let the FBI Pull Deleted Signal Messages Off an iPhone (CVE-2026-28950)

Apple shipped iOS 26.4.2, iPadOS 26.4.2, iOS 18.7.8, and iPadOS 18.7.8 to fix CVE-2026-28950, a data retention flaw in the Notification Services framework that kept the text of deleted notifications in an internal database. The FBI used the bug to recover Signal message content from a seized iPhone after the Signal app had been deleted. Patch every managed iPhone today and enforce preview redaction on sensitive messaging apps.

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CVE-2026-40372
critical
CVE AdvisoryVulnerabilityCVE-2026-40372 Apr 22, 2026

CRITICAL: Microsoft Patches CVSS 9.1 ASP.NET Core Flaw Letting Attackers Forge Authentication Cookies on Linux

Microsoft published an advisory for CVE-2026-40372, a CVSS 9.1 elevation-of-privilege flaw in Microsoft.AspNetCore.DataProtection versions 10.0.0 through 10.0.6 that lets a network-positioned attacker forge authentication cookies and decrypt protected payloads. The bug primarily affects Linux and macOS deployments where the managed authenticated encryptor computes its HMAC tag over the wrong bytes and skips the comparison entirely. Patch to 10.0.7 immediately and rotate the DataProtection key ring if the application was internet-exposed during the vulnerable window.

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high
CVE AdvisoryVulnerabilityApr 21, 2026

HIGH: Three Microsoft Defender Zero-Days Chain Into SYSTEM Takeover With Two Still Unpatched

Three zero-day vulnerabilities in Microsoft Defender, nicknamed BlueHammer, RedSun, and UnDefend, are under active exploitation after researcher Chaotic Eclipse dumped working proof-of-concept code. Only BlueHammer (CVE-2026-33825, CVSS 7.8) has been patched. RedSun escalates local users to SYSTEM on fully patched systems while UnDefend silently disables Defender definition updates, making the chained attack especially dangerous until the May 13 Patch Tuesday.

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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.

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