CVE-2012-3520

Low

The Netlink implementation in the Linux kernel before 3.2.30 does not properly handle messages that lack SCM_CREDENTIALS data, which might allow local users to spoof Netlink communication via a crafted message, as demonstrated by a message to (1) Avahi or (2) NetworkManager.

Package Linux Kernel
Published 2012-10-03
Last modified 2026-04-29
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

1.9

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

Weakness type

CWE-287

CVE-2012-3520 is classified as CWE-287

See CWE-287 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2012-3520 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-2012-3520?

    CVE-2012-3520 is a Low severity Linux kernel vulnerability with a CVSS score of 1.9 out of 10 . CVE-2012-3520 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2012-3520?

    CVE-2012-3520 has a CVSS score of 1.9 out of 10, rated Low severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:N/I:P/A:N .

  • Is there a patch available for CVE-2012-3520?

    No patch is currently available for CVE-2012-3520. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2012-3520 actively exploited?

    No — CVE-2012-3520 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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