How severe is CVE-2015-1641?

CVE-2015-1641 has a CVSS score of 7.8/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2015-1641?

Affected package information for CVE-2015-1641 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2015-1641?

No fixed version has been published for CVE-2015-1641 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2015-1641 actively exploited in the wild?

Yes. There are 4 known exploit references for CVE-2015-1641, including 3 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2015-1641?

CVE-2015-1641 has an EPSS (Exploit Prediction Scoring System) score of 93.7%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2015-1641 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2015-1641 (Microsoft Office Memory Corruption Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2021-11-03. CISA required all US federal civilian agencies to remediate this vulnerability by 2022-05-03. The required action was: Apply updates per vendor instructions. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2015-1641?

CVE-2015-1641 is classified as Out-of-bounds Write (CWE-787). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Which products and versions are affected by CVE-2015-1641?

CVE-2015-1641 affects microsoft office (1 version, e.g. 2010); microsoft office compatibility pack; microsoft office web apps (2 versions, e.g. 2010, 2013); microsoft outlook (1 version, e.g. 2011), and 2 more product(s). Check the affected-products list on this page against your deployed version to confirm exposure.

When was CVE-2015-1641 published, and has it been updated?

CVE-2015-1641 was published on April 14, 2015 and was last updated on April 22, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2021-11-03 — agencies required to remediate by 2022-05-03

CVE-2015-1641

HIGH

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…

Published

Apr 14, 2015

Updated

Apr 22, 2026

Affected

0 pkgs

Patched

None yet

Exploits

4 known

EPSS Exploitation Probability

via FIRST.org ↗

93.7%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

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."

Affected Products

6 products · 12 configurations

Application

officemicrosoft

1 version

2010

Application

office compatibility packmicrosoft

all

Application

office web appsmicrosoft

2 versions

20102013

Application

outlookmicrosoft

1 version

2011

Application

sharepoint servermicrosoft

2 versions

20102013

Application

wordmicrosoft

4 versions

2007201020112013

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, …

docs.microsoft.comGoogle-sheetApr 2015

Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, …

github.comGithubOct 2015

Microsoft Word 2007 SP3, Office 2010 SP2, Word 2010 SP2, Word 2013 SP1, …

cisa.govCISAJul 2021

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2015-1641 in your stack?

O3 detects CVE-2015-1641 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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