How severe is CVE-2011-1768?

CVE-2011-1768 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2011-1768 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1768?

CVE-2011-1768 primarily affects Linux Linux Kernel. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1768?

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

When was CVE-2011-1768 published?

CVE-2011-1768 was published on 2012-06-13 and last updated on 2026-06-16.

CVE-2011-1768

CVE-2011-1768 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 5.4. 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-362.

Key facts

Severity: Medium (CVSS 2.0 base score 5.4)
EPSS exploit prediction: 2% (80th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Linux Linux Kernel
Published: 2012-06-13
Last modified: 2026-06-16

Description

The tunnels implementation in the Linux kernel before 2.6.34, when tunnel functionality is configured as a module, allows remote attackers to cause a denial of service (OOPS) by sending a packet during module loading.

Frequently asked questions

What is CVE-2011-1768?: The tunnels implementation in the Linux kernel before 2.6.34, when tunnel functionality is configured as a module, allows remote attackers to cause a denial of service (OOPS) by sending a packet during module loading.
How severe is CVE-2011-1768?: CVE-2011-1768 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2011-1768 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1768?: CVE-2011-1768 primarily affects Linux Linux Kernel. In total, 21 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1768?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1768 published?: CVE-2011-1768 was published on 2012-06-13 and last updated on 2026-06-16.

References

Affected products (21)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.1:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.2:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.3:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.4:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.5:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.6:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.7:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.8:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.9:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.10:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.11:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.12:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.13:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.14:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.15:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.16:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.17:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.18:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.33.19:*:*:*:*:*:*:*

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