CVE-2015-2666: fedoraproject fedora
Vulnerability summary
CVE-2015-2666 is a medium (CVSS 6.9) vulnerability in fedoraproject fedora. EPSS estimates a 0.42% chance of exploitation in the next 30 days, higher than 36.3% of scored vulnerabilities.
Not severe (CVSS 6.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 3Timeline
- 27-05-2015PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
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 metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.42%
Chance of exploitation in the next 30 days
Percentile
36%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.42% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu2 products
- linux< 3.13.0-51.84
- linux-lts-utopic< 3.16.0-36.48~14.04.1
Debian1 product
- linux< 3.16.7-ckt9-1
Fedoraproject1 product
- fedoraEOL21
Linux1 product
- linux_kernel≥ 3.9, < 3.10.83 | ≥ 3.11, < 3.12.40 | ≥ 3.13, < 3.14.47 | ≥ 3.15, < 3.16.35 | ≥ 3.17, < 3.18.19
4 vendors · 5 products
References
15 links- lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
