Office Compatibility Pack vulnerabilitiesAnd the versions its exploited flaws hit.
Office Compatibility Pack is made by Microsoft. We track 210 published vulnerabilities listed under that exact name, across 1 version. 14 of them are on the list of flaws known to be exploited, the newest added on 14 April 2026. Microsoft lists newer releases under their own names, such as Office Compatibility Pack for Word Excel Ppt 2007, so check those pages too.
The most recent Office Compatibility Pack flaw added to the known-exploited list is CVE-2009-0238, on 14 April 2026. We keep watching the known-exploited list.
Is Office Compatibility Pack listed under other names? Yes.
Microsoft also lists Office Compatibility Pack under more specific names, such as Office Compatibility Pack for Word Excel Ppt 2007. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which versions of Office Compatibility Pack do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
- CVE-2009-0238Exploited list, 14 Apr 2026
Microsoft Office Remote Code Execution
2007-sp1 - CVE-2009-0557Exploited list, 8 Jun 2022
Microsoft Office Object Record Corruption Vulnerability
2007-sp12007-sp2 - CVE-2009-0563Exploited list, 8 Jun 2022
Microsoft Office Buffer Overflow Vulnerability
2007-sp12007-sp2
11 more exploited flaws name Office Compatibility Pack without a version of its own, for example as the system other affected software runs on. They are in the list below.
Which Office Compatibility Pack vulnerabilities are being exploited?
14 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 8.8Microsoft Office Remote Code Execution
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a...
- 7.8Microsoft Office Object Record Corruption Vulnerability
Microsoft Office contains an object record corruption vulnerability that allows remote attackers to execute code via a crafted Excel file with a malformed record object.
- 7.8Microsoft Office Buffer Overflow Vulnerability
Microsoft Office contains a buffer overflow vulnerability that allows remote attackers to execute code via a Word document with a crafted tag containing an invalid length field.
- 8.8Microsoft XML Core Services Memory Corruption Vulnerability
Microsoft XML Core Services contains a memory corruption vulnerability which could allow for remote code execution.
- 7.8Microsoft Word Remote Code Execution Vulnerability
Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data.
- 7.8Microsoft Office Remote Code Execution Vulnerability
A remote code execution vulnerability exists in Microsoft Office software when the software fails to properly handle objects in memory.
- 7.8Microsoft Office Memory Corruption Vulnerability
Microsoft Office contains a memory corruption vulnerability which can allow for remote code execution.
- 7.8Microsoft Office Security Feature Bypass Vulnerability
A security feature bypass vulnerability exists when Microsoft Office improperly handles input.
Which Office Compatibility Pack flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 97%
Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, Word 2013 RT SP1, Word for Mac 2011, Office Compatibility Pack SP3, Word Automation Services on SharePoint Server 2010 SP2 and 2013 SP1, and...
- 95%
Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka...
- 93%
Equation Editor in Microsoft Office 2007, Microsoft Office 2010, Microsoft Office 2013, and Microsoft Office 2016 allow a remote code execution vulnerability due to the way objects are handled in memory, aka...
- 84%
Microsoft XML Core Services 3.0, 4.0, 5.0, and 6.0 accesses uninitialized memory locations, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site.
- 81%
Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and...
- 58%
Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Office Compatibility Pack SP3, and Excel Viewer allow user-assisted remote attackers to execute arbitrary commands via a...
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1 flaw being exploited affects software Acme tracks
Microsoft Office Excel contains a remote code execution vulnerability that could allow an attacker to take complete control of an affected system if a user opens a specially crafted Excel file that includes a malformed object.
- Matched to
- Office Compatibility Pack on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 210 published vulnerabilities listed under the name Office Compatibility Pack, across 1 version. The most recent Office Compatibility Pack flaw added to the known-exploited list is CVE-2009-0238, on 14 April 2026.
14 are on the list of flaws known to be exploited. The most recently added are CVE-2009-0238, CVE-2009-0557 and CVE-2009-0563.
Microsoft also lists Office Compatibility Pack under more specific names, such as Office Compatibility Pack for Word Excel Ppt 2007. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Each flaw names its own versions, usually as ranges. The newest, CVE-2009-0238, affects 2007-sp1. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track Office Compatibility Pack. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.