How severe is CVE-2011-2440?

CVE-2011-2440 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2011-2440 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2440?

CVE-2011-2440 primarily affects Adobe Acrobat Reader. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-2440?

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-2011-2440 published?

CVE-2011-2440 was published on 2011-09-15 and last updated on 2026-06-16.

CVE-2011-2440

CVE-2011-2440 is a critical-severity vulnerability in Adobe Acrobat Reader with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-399.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Adobe Acrobat Reader
Published: 2011-09-15
Last modified: 2026-06-16

Description

Use-after-free vulnerability in Adobe Reader and Acrobat 8.x before 8.3.1, 9.x before 9.4.6, and 10.x before 10.1.1 allows attackers to execute arbitrary code via unspecified vectors.

Frequently asked questions

What is CVE-2011-2440?: Use-after-free vulnerability in Adobe Reader and Acrobat 8.x before 8.3.1, 9.x before 9.4.6, and 10.x before 10.1.1 allows attackers to execute arbitrary code via unspecified vectors.
How severe is CVE-2011-2440?: CVE-2011-2440 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2011-2440 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2440?: CVE-2011-2440 primarily affects Adobe Acrobat Reader. In total, 74 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-2440?: 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-2011-2440 published?: CVE-2011-2440 was published on 2011-09-15 and last updated on 2026-06-16.

References

Affected products (74)

cpe:2.3:a:adobe:acrobat_reader:8.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.4:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.5:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.6:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.1.7:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2.4:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.2.6:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:8.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.1.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.1.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.1.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.3.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.3.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.3.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.3.4:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.4:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.4.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.4.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.4.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:9.4.4:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:10.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:10.0.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:10.0.2:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat_reader:10.0.3:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat:8.0:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat:8.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat:8.1.1:*:*:*:*:*:*:*
cpe:2.3:a:adobe:acrobat:8.1.2:*:*:*:*:*:*:*

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →