CVE-2016-8666: linux linux_kernel Uncontrolled Resource Consumption
Vulnerability summary
CVE-2016-8666 is a high (CVSS 7.8) Uncontrolled Resource Consumption vulnerability in linux linux_kernel. EPSS estimates a 4.70% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 5% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 11Timeline
- 16-10-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The IP stack in the Linux kernel before 4.6 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for packets with tunnel stacking, as demonstrated by interleaved IPv4 headers and GRE headers, a related issue to CVE-2016-7039.
CVSS metrics
6 scores · 4 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
4.70%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
No change 0.00 pp
From 4.70% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat25 products
- kernel< 0:3.10.0-229.46.1.el7 | < 0:3.10.0-229.46.1.ael7b
- kernel-abi-whitelists< 0:3.10.0-229.46.1.el7 | < 0:3.10.0-229.46.1.ael7b
- kernel-bootwrapper< 0:3.10.0-229.46.1.ael7b
- kernel-debug< 0:3.10.0-229.46.1.el7 | < 0:3.10.0-229.46.1.ael7b
- kernel-debug-debuginfo< 0:3.10.0-229.46.1.el7 | < 0:3.10.0-229.46.1.ael7b
Ubuntu5 products
- linux< 3.13.0-98.145 | < 4.4.0-42.62
- linux-lts-vivid< 3.19.0-71.79~14.04.1
- linux-lts-xenial< 4.4.0-42.62~14.04.1
- linux-raspi2< 4.4.0-1027.33
- linux-snapdragon< 4.4.0-1030.33
Debian1 product
- linux< 4.6.1-1
Linux1 product
- linux_kernel≥ 3.14, < 3.16.35 | ≥ 3.17, < 3.18.47 | ≥ 3.19, < 4.1.38 | ≥ 4.2, < 4.4.29 | ≥ 4.5, < 4.6
4 vendors · 32 products
References
21 links- bto.bluecoat.com/security-advisory/sa134X Refsource CONFIRM
