The rtnl_fill_link_ifmap function in net/core/rtnetlink.c in the Linux kernel before…
Priority LOW 19CWE-200Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
The rtnl_fill_link_ifmap function in net/core/rtnetlink.c in the Linux kernel before 4.5.5 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory by reading a Netlink message.
Why it matters now
EPSS 0.0171 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 20
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:* | 11.0 sp4 | Vulnerable | Novell |
| cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* | 12.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:* | 11.0 sp4 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:* | 12.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:* | 12.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:* | 11.0 extra | Vulnerable | Novell |
- cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:* Versions 11.0 sp4 Vulnerable ·Novell
- cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* Versions 12.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_debuginfo:11.0:sp4:*:*:*:*:*:* Versions 11.0 sp4 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:* Versions 12.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_live_patching:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_module_for_public_cloud:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:* Versions 12.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:extra:*:*:*:*:*:* Versions 11.0 extra Vulnerable ·Novell
Show 10 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:* | 11.0 sp4 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* | 12.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:* | 12.0 | Vulnerable | Novell |
| cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:* | 12.0 sp1 | Vulnerable | Novell |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | 15.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | up to 4.5.4 | Vulnerable | Linux |
- cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:* Versions 11.0 sp4 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* Versions 12.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Novell
- cpe:2.3:o:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:* Versions 12.0 sp1 Vulnerable ·Novell
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions up to 4.5.4 Vulnerable ·Linux
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-4486
- 2026-10-03 Alias added: GHSA-w757-gq6j-hrx5
References
Exploit 1
Advisory 24
- SUSE-SU-2016:1690
- USN-3006-1
- USN-3004-1
- USN-3001-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1333316
- SUSE-SU-2016:1696
- https://github.com/torvalds/linux/commit/5f8e44741f9f216e33736ea4ec65ca9ac03036e6
- USN-3005-1
- SUSE-SU-2016:1985
- openSUSE-SU-2016:2184
- openSUSE-SU-2016:1641
- USN-2997-1
- USN-3000-1
- DSA-3607
- USN-3002-1
- USN-2996-1
- SUSE-SU-2016:1672
- USN-2989-1
- USN-3007-1
- SUSE-SU-2016:2074
- USN-3003-1
- SUSE-SU-2016:2105
- USN-2998-1
- SUSE-SU-2016:1937
Sources
- CVE-2016-4486 · CVE Program
- CVE-2016-4486 · NVD
- FIRST EPSS
- GHSA-w757-gq6j-hrx5 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-4486 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences