CVE-2016-3713: linux linux_kernel Improper Access Control
Vulnerability summary
CVE-2016-3713 is a high (CVSS 7.1) Improper Access Control vulnerability in linux linux_kernel. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 28.1% of scored vulnerabilities.
Not severe (CVSS 7.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 4Timeline
- 27-06-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.34% 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, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu3 products
- linux< 4.4.0-22.40
- linux-lts-wily< 4.2.0-36.42~14.04.1
- linux-lts-xenial< 4.4.0-22.40~14.04.1
Debian1 product
- linux< 4.5.4-1
Linux1 product
- linux_kernel≤ 4.6
3 vendors · 5 products
References
12 links- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1X Refsource CONFIRM
- github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5X Refsource CONFIRMVendor Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1332139X Refsource CONFIRM
