How severe is CVE-2006-5749?

CVE-2006-5749 has a CVSS 2.0 base score of 1.7, rated low severity.

Is CVE-2006-5749 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2006-5749?

CVE-2006-5749 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2006-5749?

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

When was CVE-2006-5749 published?

CVE-2006-5749 was published on 2006-12-31 and last updated on 2026-06-16.

CVE-2006-5749

CVE-2006-5749 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 1.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Low (CVSS 2.0 base score 1.7)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Linux Linux Kernel
Published: 2006-12-31
Last modified: 2026-06-16

Description

The isdn_ppp_ccp_reset_alloc_state function in drivers/isdn/isdn_ppp.c in the Linux 2.4 kernel before 2.4.34-rc4 does not call the init_timer function for the ISDN PPP CCP reset state timer, which has unknown attack vectors and results in a system crash.

Frequently asked questions

What is CVE-2006-5749?: The isdn_ppp_ccp_reset_alloc_state function in drivers/isdn/isdn_ppp.c in the Linux 2.4 kernel before 2.4.34-rc4 does not call the init_timer function for the ISDN PPP CCP reset state timer, which has unknown attack vectors and results in a system crash.
How severe is CVE-2006-5749?: CVE-2006-5749 has a CVSS 2.0 base score of 1.7, rated low severity.
Is CVE-2006-5749 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2006-5749?: CVE-2006-5749 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2006-5749?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2006-5749 published?: CVE-2006-5749 was published on 2006-12-31 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:linux:linux_kernel:*:rc3:*:*:*:*:*:*

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