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Fencer Vulns
medium 6.6

CVE-2016-8339 json

A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent.

published 2016-10-28 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9187

cvss
6.6
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
14.8%
EPSS 14.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

A buffer overflow in Redis 3.2.x prior to 3.2.4 causes arbitrary code execution when a crafted command is sent. An out of bounds write vulnerability exists in the handling of the client-output-buffer-limit option during the CONFIG SET command for the Redis data structure store. A crafted CONFIG SET command can lead to an out of bounds write potentially resulting in code execution.

Patch / fix

  • redis Debian 14, Debian 13, Debian 12 3:3.2.4-1

debian advisories DEBIAN-CVE-2016-8339

  • redis SLE Module for Server Applications 15 SP2 6.0.8-1.3.1

suse advisories SUSE-OU-2020:3291-1

  • redis openSUSE Tumbleweed 3.2.4-1.1

opensuse advisories openSUSE-SU-2024:10552-1

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-2016-8339 updated cvss 6.6

redis: OOB write vulnerability in handling of client-output-buffer-limit option during the CONFIG SET command

  • Red Hat Enterprise Linux OpenStack Platform 6 (Juno) redis Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) redis Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools redis Red Hat Mobile Application Platform 4 redis Red Hat OpenStack Platform 8 (Liberty) redis Red Hat OpenStack Platform 8 (Liberty) Operational Tools redis
    +5 more products
    Red Hat OpenStack Platform 9 (Mitaka) redis Red Hat OpenStack Platform 9 (Mitaka) Operational Tools redis Red Hat OpenStack Platform 10 (Newton) redis Red Hat OpenStack Platform 10 (Newton) Operational Tools redis Red Hat Software Collections rh-redis32-redis
    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

14.83% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • talosintelligence.com http://www.talosintelligence.com/reports/TALOS-2016-0206/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 6.6 CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Redis Redis

Classification

Weakness
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.