Loading story…
Microsoft published Security Update Guide entries for CVE-2026-4676 and CVE-2026-6300, adding the vulnerabilities to its official advisory portal. The references indicate both issues were tracked through the Microsoft Security Response Center (MSRC), with separate advisory pages created for each CVE identifier.
The available records provide only limited public detail, showing the CVE listings and publication metadata but no synopsis or technical description. Organizations that rely on Microsoft products should monitor the corresponding MSRC advisory pages for severity, affected products, patch availability, and any mitigation guidance as Microsoft updates the entries.
See real exploitation activity before you spend the cycle.
2 events from the most recent confirmed update back to the earliest known activity.
Microsoft added CVE-2026-6300 to its Security Update Guide. The reference does not include a synopsis or additional disclosure details.
Microsoft added CVE-2026-4676 to its Security Update Guide. No further technical details or impact information are provided in the reference.
See real exploitation activity behind this advisory so you can triage it against everything else in the queue.
2 references tracked. Mallory keeps watching after this page renders.
Map indicators from this story to your assets and identify affected systems in minutes.
Every observed campaign, victim, and pivot linked to actors named in this story.
Malware, exploits, and IOCs connected to the activity described here.
YARA, Sigma, and Snort rules deployed to your SIEM as soon as they’re published.
Get matching new stories delivered to your team as they break — not the next morning.
Ask questions about this story and take action on the answers.
Other stories Mallory is tracking that overlap on entities, sources, or topic labels.
Microsoft's Security Update Guide contains entries for **`CVE-2025-69720`** and **`CVE-2026-5901`**, indicating the vulnerabilities have been cataloged in the vendor's advisory system. The available references identify Microsoft as the source for both records but do not provide public synopsis text, affected products, severity ratings, exploitation details, or remediation guidance. Because the exposed metadata is limited to the CVE identifiers and advisory URLs, organizations tracking Microsoft risk should monitor the corresponding Security Update Guide pages for technical details, impacted software, and patch information as Microsoft publishes or updates the records. The current references do not establish attack activity or confirm the nature of either vulnerability beyond their presence in Microsoft's advisory portal.
Jul 12, 2026
Microsoft published Security Update Guide entries for **`CVE-2026-4462`** and **`CVE-2026-23306`**, adding both identifiers to its official vulnerability tracking portal. The references point to Microsoft-hosted advisories, but no synopsis or technical details were provided in the available material. The limited disclosure leaves the affected products, vulnerability types, severity, and remediation guidance unclear from the referenced entries alone. Organizations that rely on Microsoft software should monitor the corresponding Security Update Guide pages for fuller advisory content, including impact, patch availability, and any mitigation instructions tied to these CVEs.
Jul 12, 2026
Microsoft published Security Update Guide entries for **CVE-2025-21345** and **CVE-2021-42308**, adding or maintaining official advisory pages for the two vulnerabilities in its product security portal. The references indicate both issues are tracked through Microsoft's standard vulnerability disclosure and remediation process, with dedicated pages hosted by the Microsoft Security Response Center (**MSRC**). The available records provide limited public detail beyond the existence of the advisories, and no synopsis is included in the referenced entries. Organizations that rely on Microsoft products should review the corresponding MSRC pages for affected software, severity, and patch guidance tied to `CVE-2025-21345` and `CVE-2021-42308`.
Jul 12, 2026