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CVE-2026-70331Moderate

Microsoft Edge for iOS Spoofing Vulnerability

MSRC advisory NVD CVE.org

Assessment

Improper neutralization of input used for llm prompting in Microsoft Edge for iOS allows an unauthorized attacker to perform spoofing over a network.

Severity
Moderate
CVSS base score
5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C
Impact
Tampering
EPSS, next 30 days
0.4%Higher than 33% of scored CVEs · FIRST model run 26 Sep 2026 · about EPSS
Exploitability
Exploitation Less Likely
Publicly disclosed
No
Customer action
Required: apply the update
Component
Microsoft Edge for iOS
Weakness
CWE-1427: Improper Neutralization of Input Used for LLM Prompting
Issued by
Microsoft
Published
28 Aug 2026 · August 2026
Last revised
28 Aug 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Browser
2 affected products
  • Microsoft Edge (Chromium-based)
  • Microsoft Edge for iOS
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