How severe is CVE-2012-3405?

CVE-2012-3405 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-3405 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-3405?

CVE-2012-3405 primarily affects Redhat Enterprise Virtualization. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-3405?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-3405 published?

CVE-2012-3405 was published on 2014-02-10 and last updated on 2026-06-16.

CVE-2012-3405

CVE-2012-3405 is a medium-severity vulnerability in Redhat Enterprise Virtualization with a CVSS 2.0 base score of 5.0. 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-189.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Redhat Enterprise Virtualization
Published: 2014-02-10
Last modified: 2026-06-16

Description

The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.

Frequently asked questions

What is CVE-2012-3405?: The vfprintf function in stdio-common/vfprintf.c in libc in GNU C Library (aka glibc) 2.14 and other versions does not properly calculate a buffer length, which allows context-dependent attackers to bypass the FORTIFY_SOURCE format-string protection mechanism and cause a denial of service (segmentation fault and crash) via a format string with a large number of format specifiers that triggers "desynchronization within the buffer size handling," a different vulnerability than CVE-2012-3404.
How severe is CVE-2012-3405?: CVE-2012-3405 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-3405 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-3405?: CVE-2012-3405 primarily affects Redhat Enterprise Virtualization. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-3405?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-3405 published?: CVE-2012-3405 was published on 2014-02-10 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:a:gnu:glibc:2.14:*:*:*:*:*:*:*
cpe:2.3:a:redhat:enterprise_virtualization:3.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:8.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:10.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

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