What is CVE-2016-8633?

CVE-2016-8633 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2016-11-28.

How severe is CVE-2016-8633?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Is CVE-2016-8633 known to be exploited?

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

Buffer overflow in Linux Kernel

CVE-2016-8633

drivers/firewire/net.c in the Linux kernel before 4.8.7, in certain unusual hardware configurations, allows remote attackers to execute arbitrary code via crafted fragmented packets.

Vulnerability class: Buffer Overflow

Published 2016-11-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (77.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 77.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

Public proof-of-concept exploits

References

www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.7 (Release Notes)
www.securityfocus.com/bid/94149 (vdb-entry)
access.redhat.com/errata/RHSA-2018:1062 (vendor-advisory)
eyalitkin.wordpress.com/2016/11/06/cve-publication-cve-2016-8633/ (Third Party Advisory)
access.redhat.com/errata/RHSA-2018:0676 (vendor-advisory)
bugzilla.redhat.com/show_bug.cgi (Issue Tracking)
github.com/torvalds/linux/commit/667121ace9dbafb368618dbabcf07901c962ddac (Patch, Third Party Advisory, Issue Tracking)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Issue Tracking, Vendor Advisory)
www.openwall.com/lists/oss-security/2016/11/06/1 (mailing-list, Mailing List, Third Party Advisory)
access.redhat.com/errata/RHSA-2019:1170 (vendor-advisory)

Frequently asked questions

What is CVE-2016-8633?: CVE-2016-8633 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 6.8/10. Published 2016-11-28.
How severe is CVE-2016-8633?: Medium severity. CVSS v3 base score is 6.8 out of 10.
Is CVE-2016-8633 known to be exploited?: 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.