CISA has added two critical Fortinet FortiSandbox vulnerabilities to its exploited-vulnerabilities catalog and ordered federal agencies to patch them by July 19. Tracked as CVE-2026-39808 and CVE-2026-25089, both are operating-system command injection flaws that let an unauthenticated attacker run commands remotely with low complexity and no user interaction. Fortinet disclosed and fixed them in April and June, and threat intelligence firm Defused reported in-the-wild abuse of FortiSandbox flaws in June. FortiSandbox is a threat-detection appliance, and Fortinet gear sits at many network edges, so these devices are a recurring target in espionage and ransomware campaigns, making prompt patching important.
A vulnerability in the workflow automation platform n8n could let an attacker log in as another user without their password. Tracked as CVE-2026-59208, the flaw sits in n8n's Enterprise token exchange feature, which lets embedded deployments avoid a second login by accepting tokens from partner identity providers. Because the code did not properly bind an identity to its issuer, a valid token from one issuer that carried the identifier of a user under a different issuer would log the attacker in as that user. n8n shipped a fix on June 24, and there is no evidence of exploitation. The bug was found by an AI penetration-testing agent.
A researcher disclosed an unpatched flaw in internet-connected Shark robot vacuums that lets an attacker take control of other owners' units across the same cloud region. The certificate a vacuum uses to authenticate to its maker's Amazon cloud broker was never restricted to that one device, so a certificate pulled from a vacuum's flash memory can send root commands to any Shark vacuum the broker serves. That means watching the camera, driving the robot, reading the stored map of a home, and taking the Wi-Fi password in plaintext. No memory corruption or password guessing is needed. The researcher says the maker has had the report since March with no fix.
Zoom has patched a critical vulnerability in its Windows software that could let an unauthenticated attacker take over user accounts over the network. Tracked as CVE-2026-53412 and rated 9.8, the flaw is an improper input validation issue affecting Zoom Workplace for Windows, the VDI client, and the Meeting SDK before version 7.0.0. Zoom found it internally, shared no technical details, and says there is no evidence of exploitation or public exploit code yet. Because the Windows client sits on millions of corporate desktops and the flaw needs no credentials or user interaction, it poses a broad risk, so applying the latest updates promptly is the key mitigation.
Security firm Mindgard disclosed an unpatched flaw in Cursor, the widely used AI code editor, that runs code automatically when a developer opens a malicious repository on Windows. When loading a project, Cursor looks for a Git binary in several places, including the workspace itself, so a file named git.exe planted in the repository root gets executed with no click, prompt, or warning, and it re-runs on a cadence while the project stays open. In a proof of concept, a renamed Windows Calculator launched on its own. Mindgard reported it in December and went public after seven months with no fix, so there is no patch and no CVE, only workarounds.
Less than an hour after Microsoft's July Patch Tuesday, the researcher known as Nightmare Eclipse published a proof-of-concept for LegacyHive, a Windows privilege-escalation flaw that works on fully updated systems. It abuses the Windows User Profile Service to let a standard user load another user's registry hive, including an administrator's, into their own profile, a useful stepping stone for an attacker who already has a foothold. There is no CVE, advisory, or patch. The public proof-of-concept was deliberately stripped down, needing extra credentials, but the researcher says the original had no such limits. Given this researcher's flaws have been weaponized quickly before, defenders should not wait for a fix.
Microsoft shipped its largest Patch Tuesday on record, fixing 622 vulnerabilities, more than triple June's previous high, and two of them are already being exploited. Both live bugs are privilege-escalation flaws in identity and collaboration infrastructure rather than flashy remote code execution: CVE-2026-56164 in on-premises SharePoint Server lets an unauthenticated attacker escalate over the network, and CVE-2026-56155 in Active Directory Federation Services lets an authenticated attacker gain higher privileges, both found by incident responders inside real attacks. A third zero-day, a BitLocker bypass needing physical access, was publicly disclosed but not exploited. The sheer volume, driven partly by AI-assisted bug finding, makes prioritizing by exploitation status, not severity score, essential this month.
SonicWall is warning that two flaws in its SMA1000 remote-access appliances are being actively exploited as zero-days, and has released hotfixes. CVE-2026-15409 is an unauthenticated server-side request forgery bug in the appliance's WorkPlace interface that lets an attacker make the device send requests to internal systems, turning an edge gateway into a pivot point. CVE-2026-15410 is a code-injection flaw in the management console that lets an administrator run operating-system commands, and SonicWall rates the overall advisory a top CVSS score of 10.0. Both were added to CISA's exploited-vulnerabilities catalog, with a federal deadline of July 17. Because exploitation is confirmed, any unpatched appliance should be treated as potentially compromised.
Researchers at ESET found 11 old Microsoft-signed Linux boot components, called shims, that can be used to bypass UEFI Secure Boot on almost any PC, regardless of its operating system. The trick needs no new vulnerability: because these shims were signed years ago with a trusted Microsoft certificate and never revoked, an attacker with admin or boot-level access can copy an old vulnerable shim onto a machine and run untrusted code before the operating system loads. That enables stealthy bootkits that survive reinstalls and start before security tools. Microsoft revoked all 11 in June by blocklisting their hashes, which Windows applies automatically and Linux systems can pull through firmware updates.
Researchers at Miggo disclosed two access-control flaws in RabbitMQ, the widely used message broker, that have been present since early 2024. In the more serious one, an obsolete management endpoint had its authorization check hard-coded to always allow, so an unauthenticated attacker can leak the broker's confidential OAuth client secret in a single request, a direct path to full broker takeover where that secret is used. The second lets any logged-in user, even one with no assigned permissions, read other tenants' queue and exchange metadata, useful reconnaissance in shared environments. Both are fixed in updated releases, and the risk is sharpest where the management port is reachable from untrusted networks.