CVE-2011-1279 — Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly validate record information during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Out of Bounds WriteAV Vulnerability."

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HIGH

Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly validate record information during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Out of Bounds WriteAV Vulnerability."

Published Jun 16, 2011

9.3

HIGH

CVSS 2.0

EPSS 16.97%

Description

Microsoft Excel 2002 SP3 and 2003 SP3, Office 2004 and 2008 for Mac, and Open XML File Format Converter for Mac do not properly validate record information during parsing of Excel spreadsheets, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted spreadsheet, aka "Excel Out of Bounds WriteAV Vulnerability."

Affected products

Remediation

No remediation recorded yet.

Metrics

16.97% 0.16968

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.16968

Score over time

2022–2026

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Percentile over time

EPSS v2
EPSS v3
EPSS v4
EPSS v5

Table of values (16 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	16.97% (0.16968)	96.98th	v5 (v2026.06.15)
Jun 15, 2026	16.97% (0.16968)	96.66th	v5 (v2026.06.15)
Mar 30, 2025	43.53% (0.43527)	97.24th	v4 (v2025.03.14)
Mar 29, 2025	61.58% (0.61579)	97.61th	v4 (v2025.03.14)
Mar 17, 2025	43.53% (0.43527)	97.21th	v4 (v2025.03.14)
Dec 12, 2024	15.72% (0.15716)	96.13th	v3 (v2023.03.01)
May 14, 2024	16.06% (0.16060)	95.95th	v3 (v2023.03.01)
Mar 25, 2024	16.41% (0.16415)	95.87th	v3 (v2023.03.01)
Dec 15, 2023	18.73% (0.18728)	95.74th	v3 (v2023.03.01)
Oct 23, 2023	18.77% (0.18771)	95.65th	v3 (v2023.03.01)
Aug 29, 2023	19.85% (0.19854)	95.67th	v3 (v2023.03.01)
Jul 5, 2023	21.07% (0.21069)	95.73th	v3 (v2023.03.01)
May 12, 2023	19.85% (0.19854)	95.57th	v3 (v2023.03.01)
Mar 7, 2023	11.22% (0.11220)	94.23th	v3 (v2023.03.01)
Mar 6, 2023	47.33% (0.47332)	98.57th	v2 (v2022.01.01)
Feb 4, 2022	47.33% (0.47332)	98.06th	v2 (v2022.01.01)

Weaknesses (1)

CWE-119

Buffer Overflow

References (4)

http://www.securityfocus.com/bid/48164
vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-045
vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/67717
vdb-entryx_refsource_XF
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12373
vdb-entrysignaturex_refsource_OVAL

Link	Providers	Tags
http://www.securityfocus.com/bid/48164		vdb-entryx_refsource_BID
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-045		vendor-advisoryx_refsource_MS
https://exchange.xforce.ibmcloud.com/vulnerabilities/67717		vdb-entryx_refsource_XF
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12373		vdb-entrysignaturex_refsource_OVAL

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner microsoft

Published Jun 16, 2011

Updated Aug 6, 2024

Reserved Mar 4, 2011

Link CVE-2011-1279

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 16, 2026

Link CVE-2011-1279

Red Hat

Severity n/a

Public date n/a

Links CVE-2011-1279