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PatchSiren cyber security CVE debrief

CVE-2026-58523 Microsoft CVE debrief

CVE-2026-58523 is a medium-severity vulnerability in Microsoft Edge for Android, allowing unauthorized attackers to bypass a security feature over a network due to improper access control. The CVE was published on July 3, 2026, and has a CVSS score of 6.5. Microsoft Edge for Android is affected. The vulnerability was reported by [email protected]. Evidence is limited; further details are needed to assess the full impact.

Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-03
Original CVE updated
2026-07-07
Advisory published
2026-07-03
Advisory updated
2026-07-07

Who should care

Organizations using Microsoft Edge for Android should prioritize patching this vulnerability to prevent potential security breaches. Android users who rely on Microsoft Edge for browsing should ensure they are running the latest version. Security teams should review their inventory of Android devices and apply patches as part of their regular update cycles.

Technical summary

The CVE-2026-58523 vulnerability is caused by improper access control in Microsoft Edge for Android. This allows an unauthorized attacker to bypass a security feature over a network. The vulnerability has a CVSS score of 6.5 and a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. It is categorized under CWE-284. The vulnerability was reported by [email protected] and is detailed in the Microsoft Security Response Center (MSRC) advisory.

Defensive priority

Apply patches immediately. Review and update your inventory of Android devices to ensure they are running the latest version of Microsoft Edge.

Recommended defensive actions

  • Apply patches for Microsoft Edge for Android as soon as available.
  • Review and update inventory of Android devices to ensure they are running the latest version of Microsoft Edge.
  • Monitor for suspicious activity related to Microsoft Edge for Android.

Evidence notes

Evidence is limited; further details are needed to assess the full impact. The CVE was published on July 3, 2026, and has a CVSS score of 6.5. The vulnerability was reported by [email protected]. The MSRC advisory provides additional context.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58523 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58523

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-58523 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58523

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.