CVE-2015-2666
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and…
Does this matter?
Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own.
Description
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to the initrd.
- CVSS 2.0
- 6.9 MEDIUMAV:L/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 0.42% probability · 36th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel · fedoraproject/fedora
- Source
- cve@mitre.org
EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Broken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
- http://www.securitytracker.com/id/1032414Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
- https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Patch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Broken Link
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1534.htmlThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/03/20/18Mailing List
- http://www.securitytracker.com/id/1032414Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1204722Issue Tracking
- https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.