CVE-2016-4997
No exploitation reported by the sources we read.
- Published2016-07-03
- Fixed in4.6.3 · 4.4.14 · 4.1.28 · 3.18.37 · 3.16.37 · 3.14.73
- WeaknessCWE-264
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.
Timeline
dates in UTC- 2016-07-0321:59CVE publishedNVD
Observed activity
isMalicious corpus · updated 2026-10-23 18:48 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2016-4997?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2016-4997?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
NVD| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 4.x | ≥ 4.5, < 4.6.3 | 4.6.3 | NVD |
| 4.x | ≥ 4.2, < 4.4.14 | 4.4.14 | NVD |
| 4.1 | ≥ 3.19, < 4.1.28 | 4.1.28 | NVD |
| 3.x | ≥ 3.17, < 3.18.37 | 3.18.37 | NVD |
| 3.x | ≥ 3.15, < 3.16.37 | 3.16.37 | NVD |
| 3.x | ≥ 3.13, < 3.14.73 | 3.14.73 | NVD |
| 3.x | ≥ 3.11, < 3.12.62 | 3.12.62 | NVD |
| 3.x | ≥ 3.3, < 3.10.103 | 3.10.103 | NVD |
| 3.2 | ≥ 2.6.17, < 3.2.80 | 3.2.80 | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 12.4 | = 12.04 | no fix published | NVD |
| 14.4 | = 14.04 | no fix published | NVD |
| 15.10 | = 15.10 | no fix published | NVD |
| 16.4 | = 16.04 | no fix published | NVD |
| Branch | Affected | Fixed in | Source |
|---|---|---|---|
| 8.0 | = 8.0 | no fix published | NVD |
8 more products in the sources.
as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.
Fix
- Update Linux linux kernel to 4.6.3 · 4.4.14 · 4.1.28 · 3.18.37 · 3.16.37 · 3.14.73 · 3.12.62 · 3.10.103
Advisories and patches
- git.kernel.orgVendor Advisory
- www.kernel.orgVendor Advisory
- github.comPatch
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
Sources
- NVDCVSS 3.17.8read 2026-10-23
- NVDCVSS 2.07.2read 2026-10-23
- NVDweakness (CWE)CWE-264read 2026-10-23
- FIRST EPSSEPSS score5.7 %2026-10-22
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Published
- 2016-07-03
- Last Modified
- 2026-06-17
- NVD status
- Modified
Frequently asked questions
What is CVE-2016-4997?
Is CVE-2016-4997 actively exploited?
What is the CVSS score for CVE-2016-4997?
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