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PatchSiren cyber security CVE debrief

CVE-2026-58296 Microsoft CVE debrief

CVE-2026-58296 is a HIGH severity vulnerability in Microsoft Edge for Android, allowing unauthorized actors to disclose private personal information over a network. The vulnerability has a CVSS score of 7.1 and is classified under CWE-359. Affected users should apply vendor patches to prevent information disclosure. The CVE record was published on 2026-07-03T21:17:04.547Z and has not been modified since then.

Vendor
Microsoft
Product
Microsoft Edge (Chromium-based)
CVSS
HIGH 7.1
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

Users of Microsoft Edge for Android, security teams, and operators managing Android deployments should be aware of this vulnerability and apply patches to prevent information disclosure.

Technical summary

CVE-2026-58296 is a HIGH severity vulnerability in Microsoft Edge for Android, allowing unauthorized actors to disclose private personal information over a network. The vulnerability has a CVSS score of 7.1. Users of Microsoft Edge for Android should apply vendor patches to prevent information disclosure.

Defensive priority

Apply vendor patches to prevent information disclosure. Review and update inventory of Microsoft Edge for Android deployments.

Recommended defensive actions

  • Apply patches from Microsoft
  • Inventory and update Microsoft Edge for Android
  • Monitor for unauthorized access attempts
  • Review compensating controls for exposed systems
  • Check relevant monitoring, detection, and logs for exposed assets

Evidence notes

The CVE record was published on 2026-07-03T21:17:04.547Z and has not been modified since then. The NVD entry is currently Analyzed. Evidence is limited to CVE and NVD details. Defenders should verify affected Microsoft Edge for Android deployments and review vendor advisories for patching guidance.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-58296 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-58296

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

  • CVE-2026-58296 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-58296

    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.