CVE-2012-2539
Microsoft Word Remote Code Execution Vulnerability
- High 7.8
- Exploited: added to CISA KEV 28 Mar 2022
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."
Key facts
- Published
- 12 Dec 2012
- Last changed
- 22 Oct 2025
- Assigned by
- microsoft
- KEV added
- 28 Mar 2022
- KEV fix due
- 18 Apr 2022
- EPSS
- 53.033% likely to be exploited in the next 30 days, higher than 98.996% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 12 Dec 2012 Published
- 28 Mar 2022 CVE-2012-2539 added to CISA KEV
- 28 Mar 2022 Added to the CISA KEV catalogue