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Vulnerability record · CVE-2015-2424 · published 14 July 2015

CVE-2015-2424: Microsoft Office memory corruption via crafted document

Microsoft · Excel Viewer

CVE-2015-2424 is an out-of-bounds write (CWE-787) in Microsoft PowerPoint and Word that is triggered when a crafted Office document is opened. A remote attacker can corrupt memory, leading to arbitrary code execution or a denial of service. The flaw affects multiple Office 2007, 2010 and 2013 releases and related viewers and compatibility packs.

8.8 CVSS 3.1 High CISA KEV since 3 Mar 2022 EPSS 40% · top 1.4% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score, v2 9.3
40%EPSS exploitation probability, 30 days
YesIn CISA KEV, fix deadline passed
6Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

Description

Microsoft PowerPoint 2007 SP3, Word 2007 SP3, PowerPoint 2010 SP2, Word 2010 SP2, PowerPoint 2013 SP1, Word 2013 SP1, and PowerPoint 2013 RT SP1 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted Office document, aka "Microsoft Office Memory Corruption Vulnerability."

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

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 17 September 2026. Confidence: high.

high priorityThe flaw allows remote code execution with user interaction, is listed in CISA KEV and has a high EPSS score, though it requires a user to open a crafted document.

What it is

CVE-2015-2424 is an out-of-bounds write (CWE-787) in Microsoft PowerPoint and Word that is triggered when a crafted Office document is opened. A remote attacker can corrupt memory, leading to arbitrary code execution or a denial of service. The flaw affects multiple Office 2007, 2010 and 2013 releases and related viewers and compatibility packs.

Impact

Successful exploitation lets an attacker run arbitrary code in the context of the user who opened the document, or crash the application. Given the affected products, this typically means full control of the victim's workstation.

Attack surface

Reached by delivering a malicious Office document to the target, for example via email or a hosted file, and having the user open it. The CVSS vector shows network reachability with no privileges required but user interaction required (UI:R).

Exploitation

CVE-2015-2424 is listed in CISA KEV (added 2022-03-03) and has a high EPSS 30-day probability of about 0.385 (98.5th percentile), indicating observed exploitation and elevated risk. No ransomware campaign use is recorded.

What to do

  • Apply the Microsoft MS15-070 security update to all affected Office 2007, 2010 and 2013 products, viewers and compatibility packs.
  • Where patching is not yet possible, disable or restrict opening of untrusted Office documents and use Office Protected View or File Block settings.
  • Block or quarantine Office document attachments from external senders at the email gateway.
  • Remove or upgrade unsupported Office versions that no longer receive security updates.
  • Educate users not to open unexpected Office documents from unknown sources.

Detection

  • Monitor for Office applications (WINWORD.EXE, POWERPNT.EXE) spawning child processes such as cmd.exe, powershell.exe or wscript.exe.
  • Alert on Office crashes or memory corruption events tied to document opens, especially from email or download directories.
  • Hunt for documents exploiting this flaw using endpoint or email content inspection and known CVE-2015-2424 signatures.
  • Review proxy and email logs for delivery of Office documents from suspicious external sources to internal users.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Exploitation in the wild

CISA added CVE-2015-2424 to the Known Exploited Vulnerabilities catalog on 3 March 2022 as "Microsoft PowerPoint Memory Corruption Vulnerability". Required action: Apply updates per vendor instructions. Federal deadline 24 March 2022.

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securitytracker.com/id/1032899 Broken LinkThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-070 PatchVendor Advisory
http://www.securitytracker.com/id/1032899 Broken LinkThird Party AdvisoryVDB Entry
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-070 PatchVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-2424 US Government Resource

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2015-2424), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.