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Fencer Vulns
medium 6.1

CVE-2016-8658 json

Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the L…

published 2016-10-16 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9497

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 52%
public exploits
0
none known

Summary

Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.7.5-1

debian advisories DEBIAN-CVE-2016-8658

  • linux Ubuntu 14.04 LTS 3.13.0-103.150
  • linux Ubuntu 16.04 LTS 4.4.0-51.72
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1038.45
  • linux-lts-vivid Ubuntu 14.04 LTS 3.19.0-75.83~14.04.1
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-51.72~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1042.46

ubuntu advisories UBUNTU-CVE-2016-8658

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-ec2 SLE Module for Public Cloud 12 3.12.61-52.66.1
  • kernel-rt SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-compute SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-syms-rt SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-rt_debug SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-source-rt SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-compute_debug SLE Real Time 12 SP1 3.12.67-60.27.1
  • kernel-ec2 SLE Module for Public Cloud 12 3.12.67-60.64.18.1

suse advisories SUSE-SU-2017:0471-1SUSE-SU-2016:3304-1SUSE-SU-2016:2912-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-8658 updated cvss 6.1

kernel: Stack buffer overflow in brcmf_cfg80211_start_ap

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.67% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
NVD 2.0 5.6 AV:L/AC:L/Au:N/C:N/I:P/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.