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Fencer Intel
high 7.8

CVE-2016-4973 json

Binaries compiled against targets that use the libssp library in GCC for stack smashing protection (SSP) might allow local users to perform…

published 2017-06-07 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5945

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

Binaries compiled against targets that use the libssp library in GCC for stack smashing protection (SSP) might allow local users to perform buffer overflow attacks by leveraging lack of the Object Size Checking feature.

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-2016-4973 updated cvss 3.6

gcc: Targets using libssp for SSP are missing -D_FORTIFY_SOURCE functionality

  • Red Hat Enterprise Linux 5 gcc, gcc44, compat-gcc-32, compat-gcc-34, compat-gcc-295, compat-gcc-296 Red Hat Enterprise Linux 6 cpp, gcc, libgcc, libgcj, libitm, gcc-c++, +23 more Red Hat Enterprise Linux 7 cpp, gcc, libgo, gcc-go, libgcc, libitm, +20 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

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

Classification

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

References

Sources

Fencer Intel 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.