What is CVE-2018-12326?

CVE-2018-12326 is a high-severity vulnerability in Redislabs Redis, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.4/10. Published 2018-06-17.

How severe is CVE-2018-12326?

High severity. CVSS v3 base score is 8.4 out of 10.

Is CVE-2018-12326 known to be exploited?

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

Buffer overflow in Redislabs Redis

CVE-2018-12326

Buffer overflow in redis-cli of Redis before 4.0.10 and 5.x before 5.0 RC3 allows an attacker to achieve code execution and escalate to higher privileges via a crafted command line. NOTE: It is unclear whether there are any common situations in which redis-cli is used with, for example, a -h (aka hostname) argument from an untrusted source.

Vulnerability class: Buffer Overflow

Published 2018-06-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.6th percentile), scored 2026-10-19.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Redislabs Redis — versions 5.0

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

gist.github.com/fakhrizulkifli/f831f40ec6cde4f744c552503d8698f0 (Third Party Advisory)
www.exploit-db.com/exploits/44904/ (Exploit, VDB Entry, Third Party Advisory, exploit)
access.redhat.com/errata/RHSA-2019:0052 (vendor-advisory)
access.redhat.com/errata/RHSA-2019:0094 (vendor-advisory)
github.com/antirez/redis/commit/9fdcc15962f9ff4baebe6fdd947816f43f730d50 (Patch, Third Party Advisory)
raw.githubusercontent.com/antirez/redis/4.0/00-RELEASENOTES (Patch, Third Party Advisory)
raw.githubusercontent.com/antirez/redis/5.0/00-RELEASENOTES (Patch, Third Party Advisory)
access.redhat.com/errata/RHSA-2019:1860 (vendor-advisory)

Frequently asked questions

What is CVE-2018-12326?: CVE-2018-12326 is a high-severity vulnerability in Redislabs Redis, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.4/10. Published 2018-06-17.
How severe is CVE-2018-12326?: High severity. CVSS v3 base score is 8.4 out of 10.
Is CVE-2018-12326 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.