How severe is CVE-2011-2723?

CVE-2011-2723 has a CVSS 2.0 base score of 5.7, rated medium severity.

Is CVE-2011-2723 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2723?

CVE-2011-2723 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-2723?

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

When was CVE-2011-2723 published?

CVE-2011-2723 was published on 2011-09-06 and last updated on 2026-06-16.

CVE-2011-2723

CVE-2011-2723 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 5.7. 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: Medium (CVSS 2.0 base score 5.7)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Linux Linux Kernel
Published: 2011-09-06
Last modified: 2026-06-16

Description

The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before 2.6.39.4, when Generic Receive Offload (GRO) is enabled, resets certain fields in incorrect situations, which allows remote attackers to cause a denial of service (system crash) via crafted network traffic.

Frequently asked questions

What is CVE-2011-2723?: The skb_gro_header_slow function in include/linux/netdevice.h in the Linux kernel before 2.6.39.4, when Generic Receive Offload (GRO) is enabled, resets certain fields in incorrect situations, which allows remote attackers to cause a denial of service (system crash) via crafted network traffic.
How severe is CVE-2011-2723?: CVE-2011-2723 has a CVSS 2.0 base score of 5.7, rated medium severity.
Is CVE-2011-2723 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2723?: CVE-2011-2723 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-2723?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2723 published?: CVE-2011-2723 was published on 2011-09-06 and last updated on 2026-06-16.

References

Affected products (1)

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

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