SecPod

Learn Search

Search across all Learn content

← Back to Security Research

18 year old unpatched vulnerability returns to haunt Microsoft Windows

A critical bug dubbed Redirect to SMB has been discovered which is known to affect all devices running any version of Windows, including Windows 10. The as-yet unpatched flaw in Windows leaks username and password details to remote attackers, and was first reported to Microsoft way back in 1997.

Apr 15, 2015By Sindhu Rao2 min read

A critical bug dubbed Redirect to SMB has been discovered which is known to affect all devices running any version of Windows, including Windows 10. The as-yet unpatched flaw in Windows leaks username and password details to remote attackers, and was first reported to Microsoft way back in 1997.

What is SMB?
Server Message Block, is a protocol that allows users to share files over a network. SMB is often used by companies and organizations to share files from one server across their entire network.

How redirect to SMB works?
Simply put, an attacker only needs to intercept an HTTP request, which can be easily done using Man-in-the-Middle (MitM) attack, and then redirect the victim to a malicious SMB server controlled by the attacker.

Who are affected?
Widely used application like Adobe Reader, Apple QuickTime, Apple Software Update, Internet Explorer, Windows Media Player, Excel 2010 and even some anti – virus software are said to be some of the 31 programs that are affected.

How to protect yourself?
• Block inbound traffic to TCP 139 and TCP 445.
• Apply applicable and up-to-date software patches from vendors. Scan for vulnerabilities and update patches using SecPod Saner
• Use strong passwords, so it is not easily cracked by brute force.

We will let you know once Microsoft releases a patch or an update on SMB. Watch this space for more!

Featured Posts

Open CVE-2023-49105: The ownCloud Authentication Flaw That Exposed Sensitive Credentials
CVE-2023-49105: The ownCloud Authentication Flaw That Exposed Sensitive Credentials

CVE Research

CVE-2023-49105: The ownCloud Authentication Flaw That Exposed Sensitive Credentials

Sep 25, 2026

Open Patch Analysis & Exploitation Timeline: RouterOS SSH Attacks Predate Production Fixes in CISA's September 10, 2026 KEV Additions
Patch Analysis & Exploitation Timeline: RouterOS SSH Attacks Predate Production Fixes in CISA's September 10, 2026 KEV Additions

CVE Research

Patch Analysis & Exploitation Timeline: RouterOS SSH Attacks Predate Production Fixes in CISA's September 10, 2026 KEV Additions

Two MikroTik RouterOS CVEs entered CISA KEV seven days after production fixes. Dated reporting places SSH-chain exploitation involving CVE-2026-86060 at least one calendar day before those releases; no comparable start date is established for CVE-2026-67277.

Sep 25, 2026

Open Patch Analysis & Exploitation Timeline: A Day-Old Chrome Bug and an Eight-Month-Old Fortinet Flaw Share the Same KEV Batch
Patch Analysis & Exploitation Timeline: A Day-Old Chrome Bug and an Eight-Month-Old Fortinet Flaw Share the Same KEV Batch

CVE Research

Patch Analysis & Exploitation Timeline: A Day-Old Chrome Bug and an Eight-Month-Old Fortinet Flaw Share the Same KEV Batch

Four vulnerabilities added to CISA’s KEV catalog on September 9, 2026 show widely different timelines between public disclosure and formal exploitation-based prioritization, ranging from one day to 239 days.

Sep 24, 2026

Open TA412/APT31: Mapping Threat Actor Patterns to CVE Exploitation Chains

TA412/APT31: Mapping Threat Actor Patterns to CVE Exploitation Chains

CVE Research

TA412/APT31: Mapping Threat Actor Patterns to CVE Exploitation Chains

A chronological look at how a long-running China-nexus espionage cluster evolved from server-side exploitation to a chained Chrome/Windows zero-day kit — and what that shift signals.

Sep 24, 2026