CVE-2026-58289

highpriority · track · 44EPSS 0.020 · 81 %ileexploit · PoCDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

1.99% (81st) EPSS

CVSS 8.3 · high

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · msrc_csaf

EPSS · scored 2026-10-27

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Edge (Chromium-based)msrc_csaf
150.0.4078.48:Security Update:https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security
https://docs.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security

cvss

Technical severity, 0–10. One row per scoring source.

9.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.9–9

v3.18.3highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.6 · impact 6

v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 2.2 · impact 6

v3.17.9highCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H/E:Psecondary · CVSS-BT (t0sche)

v3.19criticalCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-843USCWE-843US

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-52632Microsoft Edge 150.0.4078.48 - RCEPoC · exploit_db

affected products (8)

Products and version ranges known to be affected.

Microsoft Edge Android <149.0.4022.105all versionscert_bundDE
Microsoft Edge Stable <150.0.4078.48all versionscert_bundDE
Microsoft Edge≤ Android <149.0.4022.105cert_bundDE
Microsoft Edge≤ Stable <150.0.4078.48cert_bundDE
Microsoft Microsoft Edge (Chromium-based)1.0.0.0 → 150.0.4078.48enisa_euvdEU
Microsoft Microsoft Edge (Chromium-based)all versionsfixedmsrc_csafUS
Microsoft Microsoft Edge (Chromium-based)< 150.0.4078.48msrc_csafUS
microsoft edge chromium< 150.0.4078.48nvdUScpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2200Microsoft Edge: Mehrere SchwachstellenDeutsch2026-07-05csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Edge ausnutzen, um erweiterte Berechtigungen zu erlangen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, Spoofing- und Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.
msrc_CVE-2026-58289Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability2026-07-03csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund msrc_csaf nvd NVD CVE.org MITRE

published 2026-07-03modified 2026-10-25

references (3)

External citations — patches, advisories, analysis.

scry

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