What is CVE-2017-7487?

CVE-2017-7487 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2017-05-14.

How severe is CVE-2017-7487?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2017-7487 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Use After Free in Linux Kernel

CVE-2017-7487

The ipxitf_ioctl function in net/ipx/af_ipx.c in the Linux kernel through 4.11.1 mishandles reference counts, which allows local users to cause a denial of service (use-after-free) or possibly have unspecified other impact via a failed SIOCGIFADDR ioctl call for an IPX interface.

Vulnerability class: Use-After-Free

Published 2017-05-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.8th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Linux Kernel
Debian Linux — versions 8.0, 9.0
Linux Kernel Through 4.11.1 — versions Linux kernel through 4.11.1

Weakness classification (CWE)

CWE-416 — Use After Free

Public proof-of-concept exploits

thdusdl1219/CVE-Study

References

www.securitytracker.com/id/1039237 (VDB Entry, Third Party Advisory, vdb-entry)
github.com/torvalds/linux/commit/ee0d8d8482345ff97a75a7d747efc309f13b0d80 (Patch, Issue Tracking, Vendor Advisory)
source.android.com/security/bulletin/2017-09-01 (Third Party Advisory)
patchwork.ozlabs.org/patch/757549/ (Patch)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch)
www.securityfocus.com/bid/98439 (VDB Entry, Third Party Advisory, vdb-entry)
www.debian.org/security/2017/dsa-3886 (vendor-advisory, Third Party Advisory)
bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)

Frequently asked questions

What is CVE-2017-7487?: CVE-2017-7487 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2017-05-14.
How severe is CVE-2017-7487?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2017-7487 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.