How severe is CVE-2011-4609?

CVE-2011-4609 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-4609 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4609?

CVE-2011-4609 primarily affects Gnu Glibc. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-4609?

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

When was CVE-2011-4609 published?

CVE-2011-4609 was published on 2013-05-02 and last updated on 2026-06-16.

CVE-2011-4609

CVE-2011-4609 is a medium-severity vulnerability in Gnu Glibc 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Gnu Glibc
Published: 2013-05-02
Last modified: 2026-06-16

Description

The svc_run function in the RPC implementation in glibc before 2.15 allows remote attackers to cause a denial of service (CPU consumption) via a large number of RPC connections.

Frequently asked questions

What is CVE-2011-4609?: The svc_run function in the RPC implementation in glibc before 2.15 allows remote attackers to cause a denial of service (CPU consumption) via a large number of RPC connections.
How severe is CVE-2011-4609?: CVE-2011-4609 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-4609 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4609?: CVE-2011-4609 primarily affects Gnu Glibc. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-4609?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-4609 published?: CVE-2011-4609 was published on 2013-05-02 and last updated on 2026-06-16.

References

https://bugzilla.redhat.com/show_bug.cgi?id=767299

Affected products (15)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1.3:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.1.9:*:*:*:*:*:*:*
cpe:2.3:a:gnu:glibc:2.13:*:*:*:*:*:*:*

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