CVE-2007-5501

High

The tcp_sacktag_write_queue function in net/ipv4/tcp_input.c in Linux kernel 2.6.21 through 2.6.23.7, and 2.6.24-rc through 2.6.24-rc2, allows remote attackers to cause a denial of service (crash) via crafted ACK responses that trigger a NULL pointer dereference.

Package Linux Kernel
Published 2007-11-15
Last modified 2026-04-23
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

7.8

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
User Interaction
Scope
Confidentiality
Low
Integrity
None
Availability
Vector string
AV:N/AC:L/Au:N/C:N/I:N/A:C

Weakness type

CWE-399

CVE-2007-5501 is classified as CWE-399

See CWE-399 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2007-5501 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2007-5501?

    CVE-2007-5501 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2007-5501 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2007-5501?

    CVE-2007-5501 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 2.0). The vector string is AV:N/AC:L/Au:N/C:N/I:N/A:C .

  • Is there a patch available for CVE-2007-5501?

    No patch is currently available for CVE-2007-5501. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2007-5501 actively exploited?

    No — CVE-2007-5501 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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