Race condition in arch/x86/kvm/x86.c in the Linux kernel before 3.17.4 allows guest OS users to cause a denial of service (guest OS crash) via a crafted application that performs an MMIO transaction or a PIO transaction to trigger a guest userspace emulation error report, a similar issue to CVE-2010-5313.
CVE-2014-7842
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 4.9 — v2 rates that MEDIUM (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:L/AC:L/Au:N/C:N/I:N/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 0.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v2.0 (legacy)
- 4.9MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 4.9(low)
- EG Risk
- 27(Track)EG Risk 27/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity49% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 31%
- KEV
- Not listed
Published
November 30, 2014
Last Modified
May 6, 2026
References (34)
- secalert@redhathttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a2b9e6c1a35afcc0973acb72e591c714e78885ff
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.html
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.html
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.html
- secalert@redhathttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2016-0855.html
- secalert@redhathttp://secunia.com/advisories/62305
- secalert@redhathttp://secunia.com/advisories/62326
- secalert@redhathttp://secunia.com/advisories/62336
- secalert@redhathttp://www.openwall.com/lists/oss-security/2014/11/13/7
- secalert@redhathttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- secalert@redhathttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- secalert@redhathttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- secalert@redhathttp://www.securityfocus.com/bid/71078
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=1163762
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-3.2.0-1458-omap4 (3.2.0-1458.78) @ precise | 2026-05-28 | ubuntu |
| ubuntu | linux-image-3.2.0-75-highbank (3.2.0-75.110) @ precise | 2026-05-28 | ubuntu |
| ubuntu | linux-image-3.16.0-29-generic (3.16.0-29.39) @ utopic | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-3.16.0-29-generic (3.16.0-29.39~14.04.1) @ trusty | 2026-05-28 | ubuntu |
| ubuntu | linux-image-extra-3.13.0-44-generic (3.13.0-44.73) @ trusty | 2026-05-28 | ubuntu |
| ubuntu | linux-image-3.13.0-44-generic (3.13.0-44.73~precise1) @ precise | 2026-05-28 | ubuntu |
| redhat | kernel-0:2.6.32-642.el6 | 2016-05-10 | redhat |
| redhat | kernel-0:3.10.0-327.el7 | 2015-11-19 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(4 across 4 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 3.16.7-ckt2-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 3.16.7-ckt2-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 3.16.7-ckt2-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 3.16.7-ckt2-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(8)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Red HatRHSA-2015:2152MODERATE2014-09-24
RHSA-2015:2152 — Moderate
- Red HatRHSA-2016:0855MODERATE2014-09-24
RHSA-2016:0855 — Moderate
- UbuntuUSN-2463-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-2464-1MEDIUM
Linux kernel (OMAP4) vulnerabilities
- UbuntuUSN-2465-1MEDIUM
Linux kernel (Trusty HWE) vulnerabilities
- UbuntuUSN-2466-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-2467-1MEDIUM
Linux kernel (Utopic HWE) vulnerabilities
- UbuntuUSN-2468-1MEDIUM
Linux kernel vulnerabilities
Data Freshness Timeline
(refreshed 5× in last 7d / 22× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 144 total refreshes for this CVE.
- 2026-09-18 19:21 UTCEPSS rescore
- 2026-09-17 19:21 UTCEPSS rescore
- 2026-09-17 19:21 UTCEPSS rescore
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-13 16:41 UTCEPSS rescore
- 2026-09-12 14:55 UTCEPSS rescore
- 2026-09-11 09:31 UTCEPSS rescore
- 2026-09-10 05:23 UTCOSV refresh
- 2026-09-07 15:56 UTCEPSS rescore
- 2026-09-06 13:42 UTCEPSS rescore
- 2026-09-05 15:23 UTCEPSS rescore
- 2026-09-04 13:55 UTCEPSS rescore
- 2026-09-02 14:07 UTCEPSS rescore
- 2026-09-01 13:48 UTCEPSS rescore
- 2026-08-30 19:12 UTCEPSS rescore
- 2026-08-28 21:34 UTCEPSS rescore
- 2026-08-27 14:20 UTCEPSS rescore
- 2026-08-26 14:41 UTCEPSS rescore
- 2026-08-25 13:44 UTCEPSS rescore
- 2026-08-23 04:23 UTCOSV refresh
- 2026-08-21 23:44 UTCEPSS rescore
- 2026-08-20 22:50 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
- 2026-08-16 14:51 UTCEPSS rescore
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- 2026-08-16 02:09 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-12 13:46 UTCEPSS rescore
- 2026-08-09 13:42 UTCEPSS rescore
- 2026-08-08 16:31 UTCEPSS rescore
- 2026-08-07 16:21 UTCEPSS rescore
- 2026-08-07 07:27 UTCOSV refresh
- 2026-08-06 13:42 UTCEPSS rescore
- 2026-08-05 19:12 UTCEPSS rescore
- 2026-08-04 15:04 UTCEPSS rescore
- 2026-08-02 02:22 UTCEPSS rescore
- 2026-08-01 04:11 UTCEPSS rescore
- 2026-07-30 16:23 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-26 13:52 UTCEG score recompute▲ 4.90
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 01:14 UTCEG score recompute
- 2026-07-23 00:17 UTCEG score recompute
- 2026-07-22 21:56 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 23:48 UTCOSV refresh
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-19 14:27 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:56 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-13 06:08 UTCEPSS rescore
- 2026-07-12 05:42 UTCEPSS rescore
- 2026-07-12 05:42 UTCEPSS rescore
- 2026-07-11 08:23 UTCEPSS rescore
- 2026-07-09 19:05 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-07 13:42 UTCEPSS rescore
- 2026-07-06 16:24 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:26 UTCEPSS rescore
- 2026-07-04 18:26 UTCOSV refresh
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-22 14:22 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 06:09 UTCOSV refresh
Frequently asked(4)
What is CVE-2014-7842?
When was CVE-2014-7842 disclosed?
Is CVE-2014-7842 actively exploited?
How do I remediate CVE-2014-7842?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2014-7842
Is Your Infrastructure Affected by CVE-2014-7842?
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