CVE-2026-70339 — MEDIUM (5.4)

Q: What is CVE-2026-70339?

CVE-2026-70339 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

Q: How severe is CVE-2026-70339?

CVE-2026-70339 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-70339?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Edge Chromium.

Vulnerability Description

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

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Microsoft	Edge Chromium	< 151.0.4129.78

Related Weaknesses (CWE)

CWE-843

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70339Vendor Advisory

FAQ

What is CVE-2026-70339?

CVE-2026-70339 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

How severe is CVE-2026-70339?

CVE-2026-70339 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-70339?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Edge Chromium.