How severe is CVE-2009-5064?

CVE-2009-5064 has a CVSS 2.0 base score of 6.9, rated medium severity.

Is CVE-2009-5064 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-5064?

CVE-2009-5064 primarily affects Gnu Glibc. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-5064?

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

When was CVE-2009-5064 published?

CVE-2009-5064 was published on 2011-03-30 and last updated on 2026-06-16.

CVE-2009-5064

CVE-2009-5064 is a medium-severity vulnerability in Gnu Glibc with a CVSS 2.0 base score of 6.9. 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-264.

Key facts

Severity: Medium (CVSS 2.0 base score 6.9)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Gnu Glibc
Published: 2011-03-30
Last modified: 2026-06-16

Description

ldd in the GNU C Library (aka glibc or libc6) 2.13 and earlier allows local users to gain privileges via a Trojan horse executable file linked with a modified loader that omits certain LD_TRACE_LOADED_OBJECTS checks. NOTE: the GNU C Library vendor states "This is just nonsense. There are a gazillion other ways to introduce code if people are downloading arbitrary binaries and install them in appropriate directories or set LD_LIBRARY_PATH etc.

Frequently asked questions

What is CVE-2009-5064?: ldd in the GNU C Library (aka glibc or libc6) 2.13 and earlier allows local users to gain privileges via a Trojan horse executable file linked with a modified loader that omits certain LD_TRACE_LOADED_OBJECTS checks. NOTE: the GNU C Library vendor states "This is just nonsense. There are a gazillion other ways to introduce code if people are downloading arbitrary binaries and install them in appropriate directories or set LD_LIBRARY_PATH etc.
How severe is CVE-2009-5064?: CVE-2009-5064 has a CVSS 2.0 base score of 6.9, rated medium severity.
Is CVE-2009-5064 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-5064?: CVE-2009-5064 primarily affects Gnu Glibc. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-5064?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-5064 published?: CVE-2009-5064 was published on 2011-03-30 and last updated on 2026-06-16.

References

Affected products (23)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.00:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.01:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.02:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.03:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.04:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.05:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.06:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.07:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.08:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.09:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:1.09.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.4:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.5:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.0.6:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1.1:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1.1.6:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1.2:*:*:*:*:*:*:*

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