How severe is CVE-2011-1581?

CVE-2011-1581 has a CVSS 2.0 base score of 9.0, rated critical severity.

Is CVE-2011-1581 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1581?

CVE-2011-1581 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-1581?

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-2011-1581 published?

CVE-2011-1581 was published on 2011-05-26 and last updated on 2026-06-16.

CVE-2011-1581

CVE-2011-1581 is a critical-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 9.0. 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-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.0)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Linux Linux Kernel
Published: 2011-05-26
Last modified: 2026-06-16

Description

The bond_select_queue function in drivers/net/bonding/bond_main.c in the Linux kernel before 2.6.39, when a network device with a large number of receive queues is installed but the default tx_queues setting is used, does not properly restrict queue indexes, which allows remote attackers to cause a denial of service (BUG and system crash) or possibly have unspecified other impact by sending network traffic.

Frequently asked questions

What is CVE-2011-1581?: The bond_select_queue function in drivers/net/bonding/bond_main.c in the Linux kernel before 2.6.39, when a network device with a large number of receive queues is installed but the default tx_queues setting is used, does not properly restrict queue indexes, which allows remote attackers to cause a denial of service (BUG and system crash) or possibly have unspecified other impact by sending network traffic.
How severe is CVE-2011-1581?: CVE-2011-1581 has a CVSS 2.0 base score of 9.0, rated critical severity.
Is CVE-2011-1581 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1581?: CVE-2011-1581 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-1581?: 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-2011-1581 published?: CVE-2011-1581 was published on 2011-05-26 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

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