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CVE-2026-58596 is an elevation-of-privilege vulnerability in Microsoft Edge (Chromium-based) caused by an untrusted pointer dereference. The issue affects Microsoft Edge versions earlier than 150.0.4078.48. An unauthorized attacker can trigger the flaw over a network, and the published CVSS vector indicates exploitation requires user interaction and has high impact on confidentiality, integrity, and availability. Specific vulnerable code paths or functions have not been provided in the available information.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
15 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An important Microsoft Edge (Chromium-based) elevation of privilege vulnerability rated more likely to be exploited.
An elevation of privilege vulnerability in Microsoft Edge (Chromium-based) caused by an untrusted pointer dereference.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.