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CVE-2016-7256

atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Window

Affects the Windows versions and editions in Microsoft's affected software table. Windows 7 32-bit SP1 has a fix, security update 3197867.

Published
Last modified
published
Listed in CISA KEV
Actively exploited
Fix
Fixed in Windows 7 for 32-bit Systems Service Pack 1 (3197867)
None on Exploit-DB, Metasploit or GitHub

Summary

The Windows font library component (atmfd.dll) in multiple versions of Microsoft Windows, including Vista, Server 2008, Windows 7, 8.1, Server 2012, RT 8.1, 10, and Server 2016, is affected. An attacker could exploit it by tricking a user into visiting a specially crafted website, allowing them to run arbitrary code on the affected system.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, and 1607, and Windows Server 2016 allows remote attackers to execute arbitrary code via a crafted web site, aka "Open Type Font Remote Code Execution Vulnerability."

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a n/a

    Version range not reported

References 4

twitter.com

securitytracker.com

docs.microsoft.com

securityfocus.com

FAQ

Questions about CVE-2016-7256

What does this mean?

A flaw in the atmfd.dll font library in Windows could let an attacker install programs, view, change, or delete data, or create new accounts with full user rights.Source: learn.microsoft.com

Am I affected, and how do I check?

The advisory's affected software table lists the Windows versions and editions that are affected. Compare the Windows version and edition shown by the winver command against that table.Source: learn.microsoft.com

What should I do about it?

Install the security update that the advisory lists for the Windows version and edition in use. For Windows 7 32-bit SP1, the listed update is 3197867 (Security Only).Source: learn.microsoft.com

Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-05-25, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data