How severe is CVE-2011-1979?

CVE-2011-1979 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-1979 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1979?

CVE-2011-1979 primarily affects Microsoft Visio. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1979?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2011-1979 published?

CVE-2011-1979 was published on 2011-08-10 and last updated on 2026-06-16.

CVE-2011-1979

CVE-2011-1979 is a critical-severity vulnerability in Microsoft Visio with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 22% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 22% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Visio
Published: 2011-08-10
Last modified: 2026-06-16

Description

Microsoft Visio 2003 SP3 and 2007 SP2 does not properly validate objects in memory during Visio file parsing, which allows remote attackers to execute arbitrary code via a crafted file, aka "Move Around the Block RCE Vulnerability."

Frequently asked questions

What is CVE-2011-1979?: Microsoft Visio 2003 SP3 and 2007 SP2 does not properly validate objects in memory during Visio file parsing, which allows remote attackers to execute arbitrary code via a crafted file, aka "Move Around the Block RCE Vulnerability."
How severe is CVE-2011-1979?: CVE-2011-1979 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-1979 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 22% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1979?: CVE-2011-1979 primarily affects Microsoft Visio. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1979?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2011-1979 published?: CVE-2011-1979 was published on 2011-08-10 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:a:microsoft:visio:2003:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:visio:2007:sp2:*:*:*:*:*:*

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