CVE-2015-1641

Exp

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 Office Web Apps Server 2010 SP2 and 2013 SP1 allow remote attackers to execute arbitrary code via a crafted RTF document, aka "Microsoft Office Memory Corruption Vulnerability."

Published: 2015-04-14 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-1641 is rated Critical Active Threat (94.8/100): CVSS High severity, with high exploitation likelihood (EPSS 97.33%, 100th percentile). Core evidence: CISA KEV confirms active exploitation (added 2021-11-03) affecting Microsoft / Office. a weakness (CWE-787) Unauthenticated remote administrative access may be possible. EPSS rose +3.66% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2015-1641

Name: Microsoft Office Memory Corruption Vulnerability · CISA KEV detail

Exploit added: 2021-11-03

Action due: 2022-05-03

Required action: Apply updates per vendor instructions.

Exploit prediction scoring system (EPSS) score for CVE-2015-1641

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 93.67% 97.33% +3.66%
2 2026-05-03 93.63% 93.67% +0.04%
3 2025-10-17 93.63%

Full EPSS history (29 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-1641

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2015-1641

Affected software / configurations for CVE-2015-1641

Vendor Product Version Raw CPE
microsoft office 2010 cpe:2.3:a:microsoft:office:2010:sp2:*:*:*:*:*:*
microsoft office_compatibility_pack cpe:2.3:a:microsoft:office_compatibility_pack:-:sp3:*:*:*:*:*:*
microsoft office_web_apps 2010 cpe:2.3:a:microsoft:office_web_apps:2010:sp2:*:*:*:*:*:*
microsoft office_web_apps 2013 cpe:2.3:a:microsoft:office_web_apps:2013:sp1:*:*:*:*:*:*
microsoft outlook 2011 cpe:2.3:a:microsoft:outlook:2011:*:*:*:*:mac_os_x:*:*
microsoft sharepoint_server 2010 cpe:2.3:a:microsoft:sharepoint_server:2010:sp2:*:*:*:*:*:*
microsoft sharepoint_server 2013 cpe:2.3:a:microsoft:sharepoint_server:2013:sp1:*:*:*:*:*:*
microsoft word 2007 cpe:2.3:a:microsoft:word:2007:sp3:*:*:*:*:*:*
microsoft word 2010 cpe:2.3:a:microsoft:word:2010:sp2:*:*:*:*:*:*
microsoft word 2011 cpe:2.3:a:microsoft:word:2011:*:*:*:*:macos:*:*
microsoft word 2013 cpe:2.3:a:microsoft:word:2013:sp1:*:*:-:*:*:*
microsoft word 2013 cpe:2.3:a:microsoft:word:2013:sp1:*:*:rt:*:*:*

References for CVE-2015-1641

cvelogic Threat Intelligence