CVE-2012-2539
Microsoft Word Remote Code Execution Vulnerability - [Actively Exploited]
Description
Microsoft Word 2003 SP3, 2007 SP2 and SP3, and 2010 SP1; Word Viewer; Office Compatibility Pack SP2 and SP3; and Office Web Apps 2010 SP1 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted RTF data, aka "Word RTF 'listoverridecount' Remote Code Execution Vulnerability."
INFO
Published Date :
Dec. 12, 2012, 12:55 a.m.
Last Modified :
Oct. 22, 2025, 1:15 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Microsoft Word allows attackers to execute remote code or cause a denial-of-service (DoS) via crafted RTF data.
Apply updates per vendor instructions.
https://nvd.nist.gov/vuln/detail/CVE-2012-2539
Affected Products
The following products are affected by CVE-2012-2539
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Microsoft has released a set of patches for Office 2003, 2007, 2010, Office Compatibility Pack, Microsoft Word Viewer, Microsoft Office Web Apps and Microsoft SharePoint Server.
Public PoC/Exploit Available at Github
CVE-2012-2539 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2012-2539.
| URL | Resource |
|---|---|
| http://www.us-cert.gov/cas/techalerts/TA12-346A.html | Third Party Advisory US Government Resource |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 | Patch Vendor Advisory |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 | Broken Link |
| http://www.us-cert.gov/cas/techalerts/TA12-346A.html | Third Party Advisory US Government Resource |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 | Patch Vendor Advisory |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 | Broken Link |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-2539 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2012-2539 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2012-2539
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
cisa-kev vulnerability 0day cisa exploits
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2012-2539 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2012-2539 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 22, 2025
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-2539 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 21, 2025
Action Type Old Value New Value Removed Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-2539 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 21, 2025
Action Type Old Value New Value Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-2539 -
Modified Analysis by [email protected]
Apr. 07, 2025
Action Type Old Value New Value Removed CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Feb. 10, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-787 -
Modified Analysis by [email protected]
Dec. 20, 2024
Action Type Old Value New Value -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://www.us-cert.gov/cas/techalerts/TA12-346A.html Added Reference https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 -
Modified Analysis by [email protected]
Jul. 09, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type http://www.us-cert.gov/cas/techalerts/TA12-346A.html US Government Resource http://www.us-cert.gov/cas/techalerts/TA12-346A.html Third Party Advisory, US Government Resource Changed Reference Type https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 No Types Assigned https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 Patch, Vendor Advisory Changed Reference Type https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 No Types Assigned https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 Broken Link Removed CWE NIST CWE-399 Added CWE NIST CWE-787 Changed CPE Configuration OR *cpe:2.3:a:microsoft:office_compatibility_pack:*:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_compatibility_pack:*:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_web_apps:2010:sp1:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_word_viewer:*:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2003:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2007:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2010:sp1:*:*:*:*:*:* OR *cpe:2.3:a:microsoft:office_compatibility_pack:-:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_web_apps:2010:sp1:*:*:*:*:*:* *cpe:2.3:a:microsoft:office_word_viewer:-:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:sharepoint_server:2010:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2003:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2007:sp2:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:* *cpe:2.3:a:microsoft:word:2010:sp1:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 12, 2018
Action Type Old Value New Value Removed Reference http://technet.microsoft.com/security/bulletin/MS12-079 [Patch, Vendor Advisory] Added Reference https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-079 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 19, 2017
Action Type Old Value New Value Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:16073 [No Types Assigned] Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16073 [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 12, 2012
Action Type Old Value New Value
Vulnerability Scoring Details
Base CVSS Score: 7.8
Base CVSS Score: 9.3
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
84.22 }} 2.33%
score
0.99266
percentile