Weekly Roundup Highlights Critical Vulnerabilities in Zoom, nginx, SonicWall, and Microsoft Products
Security NEXT has released its weekly ranking of the ten most-read articles published between July 12 and July 18, 2026. The list reflects reader interest in newly disclosed vulnerabilities, vendor patches, and real-world security incidents.
The highest-ranked story reported a serious vulnerability in the Windows edition of Zoom that was subsequently resolved in the latest version. Second place went to coverage of a cyber attack that caused system outages at Nichirei, resulting in delays to frozen-food shipments.
Microsoft’s monthly Patch Tuesday update, which addressed more than 500 vulnerabilities including zero-day flaws, ranked third. Fourth place highlighted multiple vulnerabilities in nginx, one of which was rated critical, prompting the release of updated versions.
Fifth on the list was a zero-day vulnerability affecting the SonicWall SMA1000 series, accompanied by guidance to apply updates and conduct compromise assessments. A sixth article examined the potential for information leakage at a subsidiary of TV Asahi and the ongoing investigation into its scope.
Additional widely read reports included a U.S. security authority alert on five actively exploited vulnerabilities, an SSRF flaw in GNU Wget that warrants caution in integrated environments, and a privilege-escalation issue in Microsoft Defender that has now been patched.
The tenth story covered a Chrome security update that resolved 15 vulnerabilities, two of which were classified as critical.
Related articles
- Chrome update resolves seven vulnerabilities including critical issues
- U.S. authorities urge action on exploited SharePoint Server flaws
- Multiple vulnerabilities discovered in Ivanti Xtraction data visualization product
- FortiOS receives fixes for several vulnerabilities
- Microsoft Defender privilege-escalation vulnerability patched
- Firefox critical vulnerability with public exploit code but no confirmed attacks
- nginx multiple vulnerabilities including critical issues addressed
- Dell PowerFlex serious flaw fixed in June update
- CISA warns of active exploitation of FortiSandbox and SharePoint vulnerabilities
- SAP releases monthly updates with 16 new advisories, three rated critical
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WordPress Releases Security Update Fixing Two Vulnerabilities That Chain to Remote Code Execution
The WordPress development team has issued version 7.0.2 along with other security releases on July 17, 2026, addressing two critical vulnerabilities identified as CVE-2026-63030 and CVE-2026-60137. When combined, these flaws enable remote attackers to execute arbitrary code on affected installations. CVE-2026-60137 stems from insufficient input validation in certain functions, potentially allowing SQL injection when processing untrusted data from plugins or themes. CVE-2026-63030 involves route interpretation confusion in the REST API batch endpoint, which can be leveraged alongside the SQL injection issue to achieve code execution. The vulnerabilities impact WordPress 6.8 and later branches, although chained attacks are not possible on the 6.8 series. Administrators are urged to apply the updates immediately to mitigate the risks.
Google Issues Emergency Chrome Update Patching Seven Vulnerabilities Including Three Critical Flaws
Google has released a new security update for its Chrome browser addressing seven vulnerabilities just two days after the previous patch. The update covers Windows, macOS, and Linux platforms with versions Chrome 150.0.7871.129 and 150.0.7871.128. Three of the issues, tracked as CVE-2026-15899, CVE-2026-15900, and CVE-2026-15901, received the highest severity rating of Critical and involve Use After Free flaws in CameraCapture, GPU, and Network components. Four additional High-severity vulnerabilities were also fixed, including an out-of-bounds access issue in the V8 JavaScript engine and Use After Free problems in Cast, Ozone, and Aura. The company plans to roll out the patches gradually over the coming days and weeks to all users.
OpenSSL Patches HollowByte Vulnerability That Enables Denial-of-Service Attacks on TLS Connections with Just 11 Bytes
OpenSSL has released fixes for a vulnerability dubbed HollowByte that allows denial-of-service attacks against servers using unpatched versions of the library. The flaw can be triggered by a malicious TLS request as small as 11 bytes and was addressed without a CVE or formal security advisory because it was classified as a hardening improvement. Researchers from Okta warn that the operational impact can be significant on internet-facing servers, as the issue occurs during the initial TLS handshake when vulnerable OpenSSL versions reserve memory based on the client-declared size before verifying actual data delivery. Attackers can open connections, claim they will send a large message, and then deliver only a tiny portion, leaving the server waiting indefinitely with reserved memory. In tests with NGINX, low-memory servers could be completely taken down while more powerful machines suffered substantial capacity loss without triggering abnormal traffic volumes. The patches are included in OpenSSL versions 4.0.1, 3.6.3, 3.5.7, 3.4.6, and 3.0.21, and administrators are advised to update packages, restart affected services, and monitor for unusual memory growth.
CISA Adds Three Exploited Vulnerabilities in FortiSandbox and SharePoint to KEV Catalog
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added three actively exploited vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog on July 16, 2026. Two of the flaws affect Fortinet’s FortiSandbox malware analysis product and involve OS command injection issues that can be triggered via specially crafted HTTP requests without requiring authentication. The third vulnerability impacts Microsoft SharePoint and stems from unsafe deserialization of untrusted data, potentially allowing remote code execution over the network. CISA’s action follows public advisories released by the vendors in April and June 2026. The agency is urging organizations to apply available patches and mitigations immediately to reduce the risk of compromise.