EIP-2026-118862

PRE-CVE

Microsoft Outlook Express 4.x/5.x/6.0 - Plaintext Email Security Policy Bypass

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-118862. PoCs published by http-equiv.

AI-analyzed exploit summary The provided text describes a security policy bypass vulnerability in Microsoft Outlook Express where a specially crafted CID URI in an HTML email causes automatic rendering of an attached image, bypassing security policies. The example demonstrates the exploit vector but lacks executable code.

Description

Microsoft Outlook Express 4.x/5.x/6.0 - Plaintext Email Security Policy Bypass

Exploits (1)

exploitdb WRITEUP VERIFIED
by http-equiv · textremotewindows
https://www.exploit-db.com/exploits/24687

The provided text describes a security policy bypass vulnerability in Microsoft Outlook Express where a specially crafted CID URI in an HTML email causes automatic rendering of an attached image, bypassing security policies. The example demonstrates the exploit vector but lacks executable code.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Outlook Express
No auth needed
Prerequisites: Victim must open the malicious email in Outlook Express
devstral-2 · analyzed Feb 18, 2026 Full analysis →

Details

Status pre_cve
Tracked Since Feb 18, 2026