What is CVE-2016-8636?

CVE-2016-8636 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2017-02-22.

How severe is CVE-2016-8636?

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

Is CVE-2016-8636 known to be exploited?

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

Integer overflow in Linux Kernel

CVE-2016-8636

Integer overflow in the mem_check_range function in drivers/infiniband/sw/rxe/rxe_mr.c in the Linux kernel before 4.9.10 allows local users to cause a denial of service (memory corruption), obtain sensitive information from kernel memory, or possibly have unspecified other impact via a write or read request involving the "RDMA protocol over infiniband" (aka Soft RoCE) technology.

Vulnerability class: Integer Overflow

Published 2017-02-22 · 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: 0.012 (65.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 66th percentile — 65.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

References

www.securityfocus.com/bid/96189 (VDB Entry, Third Party Advisory, vdb-entry)
www.openwall.com/lists/oss-security/2017/02/11/9 (mailing-list, Patch, Mailing List, Third Party Advisory)
www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.10 (Release Notes, Vendor Advisory)
eyalitkin.wordpress.com/2017/02/11/cve-publication-cve-2016-8636/ (Technical Description, Patch, Third Party Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Third Party Advisory, Issue Tracking)
bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking)
github.com/torvalds/linux/commit/647bf3d8a8e5777319da92af672289b2a6c4dc66 (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2016-8636?: CVE-2016-8636 is a high-severity vulnerability in Linux Kernel, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2017-02-22.
How severe is CVE-2016-8636?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2016-8636 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.