Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.
CVE-2017-10661
Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.0; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.0
- EG Score
- 7.0(medium)
- EG Risk
- 52(Track)EG Risk 52/100SSVC: 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 computedSeverity70% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 13%
- EPSS %ILE
- 96%
- KEV
- Not listed
Published
August 19, 2017
Last Modified
June 17, 2026
References (26)
- cve@mitrehttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e38da300e1e395a15048b0af1e5305bd91402f6
- cve@mitrehttp://www.debian.org/security/2017/dsa-3981
- cve@mitrehttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.15
- cve@mitrehttp://www.securityfocus.com/bid/100215
- cve@mitrehttps://access.redhat.com/errata/RHSA-2018:3083
- cve@mitrehttps://access.redhat.com/errata/RHSA-2018:3096
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:4057
- cve@mitrehttps://access.redhat.com/errata/RHSA-2019:4058
- cve@mitrehttps://access.redhat.com/errata/RHSA-2020:0036
- cve@mitrehttps://bugzilla.redhat.com/show_bug.cgi?id=1481136
- cve@mitrehttps://github.com/torvalds/linux/commit/1e38da300e1e395a15048b0af1e5305bd91402f6
- cve@mitrehttps://source.android.com/security/bulletin/2017-08-01
- cve@mitrehttps://www.exploit-db.com/exploits/43345/
- af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1e38da300e1e395a15048b0af1e5305bd91402f6
- af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2017/dsa-3981
Patch Availability(7)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-image-extra-3.13.0-135-generic (3.13.0-135.184) @ trusty | 2026-05-22 | ubuntu |
| ubuntu | linux-image-generic-lts-trusty (3.13.0.135.125) @ precise | 2026-05-22 | ubuntu |
| redhat | kernel-0:3.10.0-862.46.1.el7 | 2020-01-07 | redhat |
| redhat | kernel-0:3.10.0-693.61.1.el7 | 2019-12-03 | redhat |
| redhat | kernel-rt-1:3.10.0-693.61.1.rt56.656.el6rt | 2019-12-03 | redhat |
| redhat | kernel-rt-0:3.10.0-957.rt56.910.el7 | 2018-10-30 | redhat |
| redhat | kernel-0:3.10.0-957.el7 | 2018-10-30 | 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
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 4.9.30-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 4.9.30-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 4.9.30-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | — | 4.9.30-1 | — |
Debian:7(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| linux | 3.2.41-2 ... 3.2.89-2 (67 versions) | 3.2.93-1 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(7)
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-2018:3083MODERATE2017-02-10
RHSA-2018:3083 — Moderate
- Red HatRHSA-2018:3096MODERATE2017-02-10
RHSA-2018:3096 — Moderate
- Red HatRHSA-2019:4057MODERATE2017-02-10
RHSA-2019:4057 — Moderate
- Red HatRHSA-2019:4058MODERATE2017-02-10
RHSA-2019:4058 — Moderate
- Red HatRHSA-2020:0036MODERATE2017-02-10
RHSA-2020:0036 — Moderate
- UbuntuUSN-3470-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-3470-2MEDIUM
Linux kernel (Trusty HWE) vulnerabilities
Data Freshness Timeline
(refreshed 3× in last 7d / 23× 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 115 total refreshes for this CVE.
- 2026-08-25 13:44 UTCEPSS rescore
- 2026-08-21 23:44 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
- 2026-08-16 14:51 UTCEPSS rescore
- 2026-08-16 02:10 UTCEPSS rescore
- 2026-08-15 01:25 UTCEPSS rescore
- 2026-08-13 23:10 UTCOSV refresh
- 2026-08-12 13:46 UTCEPSS rescore
- 2026-08-11 13:36 UTCEPSS rescore
- 2026-08-09 13:42 UTCEPSS rescore
- 2026-08-08 16:32 UTCEPSS rescore
- 2026-08-07 16:22 UTCEPSS rescore
- 2026-08-06 13:42 UTCEPSS rescore
- 2026-08-05 19:12 UTCEPSS rescore
- 2026-08-04 15:05 UTCEPSS rescore
- 2026-08-02 02:22 UTCEPSS rescore
- 2026-08-01 04:11 UTCEPSS rescore
- 2026-07-30 16:24 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-30 01:26 UTCEPSS rescore
- 2026-07-29 02:47 UTCOSV refresh
- 2026-07-28 15:31 UTCEPSS rescore
- 2026-07-26 14:50 UTCEPSS rescore
- 2026-07-25 14:13 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:25 UTCEG score recompute
- 2026-07-22 22:05 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-11 19:11 UTCOSV refresh
- 2026-07-11 08:24 UTCEPSS rescore
- 2026-07-09 19:06 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 16:24 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-06 02:20 UTCEPSS rescore
- 2026-07-05 02:27 UTCEPSS rescore
- 2026-07-04 06:28 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 14:03 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 01:30 UTCOSV refresh
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:57 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 20:57 UTCOSV refresh
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (1 GitHub PoC) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-43345First seen Dec 15, 2017
Linux kernel < 4.10.15 - Race Condition Privilege Escalation
Open source ↗ - GitHub PoCGeneBlue/CVE-2017-10661_POCFirst seen Aug 11, 2017
poc for cve-2017-10661
Open source ↗
Frequently asked(5)
What is CVE-2017-10661?
When was CVE-2017-10661 disclosed?
Is CVE-2017-10661 actively exploited?
What is the CVSS score of CVE-2017-10661?
How do I remediate CVE-2017-10661?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-10661
Is Your Infrastructure Affected by CVE-2017-10661?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.