CVE-2007-2494: Multiple stack-based buffer overflows in the PowerPointOCX ActiveX control in PowerPointViewer.ocx 3.1.0.3 all

Q: How do I fix CVE-2007-2494?

powerpoint viewer ocx: upgrade to newer than 3.1.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2007-2494 being exploited?

CVE-2007-2494 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2007-2494 affect?

CVE-2007-2494 affects powerpoint viewer ocx. Severity is high (CVSS 10.0). Multiple stack-based buffer overflows in the PowerPointOCX ActiveX control in PowerPointViewer.ocx 3.1.0.3 allow remote attackers to cause a denial of service (Internet Explorer 7 crash) via a long (1) DoOleCommand, (2) FTPDownloadFile, (3)

Q: How urgent is CVE-2007-2494?

Priority 63/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

This week

HIGH 10.0UPGRADE

CVE-2007-2494 is a high-severity flaw (CVSS 10.0) affecting powerpoint viewer ocx. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple stack-based buffer overflows in the PowerPointOCX ActiveX control in PowerPointViewer.ocx 3.1.0.3 allow remote attackers to cause a denial of service (Internet Explorer 7 crash) via a long (1) DoOleCommand, (2) FTPDownloadFile, (3) FTPUploadFile, (4) HttpUploadFile, (5) Save, (6) SaveWebFile, (7) HttpDownloadFile, (8) Open, or (9) OpenWebFile property value. NOTE: some of these details are obtained from third party information.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	5.2% (top 8%)
CISA exploited list	No
Published	2007-05-04
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: office ocx

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-05-04 00:19 UTCPublished CVE record published
2026-06-16 22:39 UTCUpdated Record last modified

office ocx powerpoint viewer ocx UPGRADE

Affected: <= 3.1.0.3

Fixed in: newer than 3.1.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy powerpoint-viewer-ocx || rpm -q powerpoint-viewer-ocx || powerpoint-viewer-ocx --version

2. UPGRADE to newer than 3.1.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade powerpoint-viewer-ocx

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade powerpoint-viewer-ocx

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: PowerPoint Viewer OCX 3.2 - ActiveX Control Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-2494?

powerpoint viewer ocx: upgrade to newer than 3.1.0.3. Exact commands for each OS are on this page.

Is CVE-2007-2494 being exploited?

CVE-2007-2494 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-2494 affect?

CVE-2007-2494 affects powerpoint viewer ocx. Severity is high (CVSS 10.0). Multiple stack-based buffer overflows in the PowerPointOCX ActiveX control in PowerPointViewer.ocx 3.1.0.3 allow remote attackers to cause a denial of service (Internet Explorer 7 crash) via a long (1) DoOleCommand, (2) FTPDownloadFile, (3)

How urgent is CVE-2007-2494?

Priority 63/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

Internet Explorer vulnerabilities

References

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