{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-58289: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-58289","status":"final","version":"1","initial_release_date":"2026-07-03T20:35:29.711Z","current_release_date":"2026-07-03T21:26:19.336Z","revision_history":[{"date":"2026-07-03T20:35:29.711Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-58289 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-58289"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-58289"},{"category":"external","summary":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58289"}]},"product_tree":{"branches":[{"category":"vendor","name":"Microsoft","branches":[{"category":"product_name","name":"Microsoft Edge (Chromium-based)","branches":[{"category":"product_version_range","name":">=1.0.0.0 <150.0.4078.48","product":{"name":"Microsoft Microsoft Edge (Chromium-based) >=1.0.0.0 <150.0.4078.48","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:microsoft:microsoft_edge_\\(chromium-based\\):*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-58289","title":"Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability","notes":[{"category":"description","text":"Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C","baseScore":9,"baseSeverity":"CRITICAL"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 150.0.4078.48.","product_ids":["CSAFPID-1"],"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-58289"}]}]}