CVE-2011-1021
LOW · CVSS 3.6EPSS 0.9%EU EUVD
drivers/acpi/debugfs.c in the Linux kernel before 3.0 allows local users to modify arbitrary kernel memory locations by leveraging root privileges to write to the /sys/kernel/debug/acpi/custom_method file. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4347.
Key facts
- CVSS score
- 3.6 (v2.0)
- Severity
- LOW
- CVSS vector
AV:L/AC:L/Au:N/C:N/I:P/A:P- Weakness (CWE)
- CWE-264
- EPSS score
- 0.9% (61th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1038)
- Published
- June 21, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1038 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
- linux / linux kernel
References
- http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=526b4af47f44148c9d665e57723ed9f86634c6e3
- http://www.openwall.com/lists/oss-security/2011/02/25/5
- https://bugzilla.redhat.com/show_bug.cgi?id=680841
- https://github.com/torvalds/linux/commit/526b4af47f44148c9d665e57723ed9f86634c6e3(Exploit, Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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