CVE-2011-3403

NONECVSS 0.0Elevated

0.0

Microsoft Excel 2003 SP3 and Office 2004 for Mac do not properly handle objects in memory, which allows remote attackers to execute arbitrary code via a crafted Excel spreadsheet, aka "Record Memory Corruption Vulnerability."

CVSS v3: —
EG Score: 0.0(none)
EPSS: 97.4%
KEV: Not listed

Published

December 14, 2011

Last Modified

April 29, 2026

References (6)

secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA11-347A.html
secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-096
secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14702
af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA11-347A.html
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-096
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14702

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-94Improper Control of Generation of Code (Code Injection)

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 06:08 UTCepss_batch
2026-06-05 06:07 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-29 06:03 UTCEG score recompute
2026-05-29 06:03 UTCGHSA enrichment
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch

Frequently asked(4)

What is CVE-2011-3403?

CVE-2011-3403 is a none vulnerability published on December 14, 2011. Microsoft Excel 2003 SP3 and Office 2004 for Mac do not properly handle objects in memory, which allows remote attackers to execute arbitrary code via a crafted Excel spreadsheet, aka "Record Memory Corruption Vulnerability."

When was CVE-2011-3403 disclosed?

CVE-2011-3403 was first published in the National Vulnerability Database on December 14, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-3403 actively exploited?

CVE-2011-3403 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2011-3403?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-3403, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2011-3403

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-3403?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(4)

Related CVEs(same CWE)