CVE-2018-12453Redis Type Confusion
Type confusion in the xgroupCommand function in t_stream.c in redis-server in Redis before 5.0 allows remote attackers to cause denial-of-service via an XGROUP command in which the key is not a stream.
Published Jun 16, 2018 · Updated Aug 7, 2026
Key Facts
Patch immediately- CVE-2018-12453 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Redis (Redislabs).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 24% probability of exploitation in the next 30 days.
- Fixed versions are available, including Redis NA, Redis 5.0.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (30-day exploit likelihood)
24%
Higher than 97.8% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
40/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
3
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Type confusion in the xgroupCommand function in t_stream.c in redis-server in Redis before 5.0 allows remote attackers to cause denial-of-service via an XGROUP command in which the key is not a stream.
Affected Products
9 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| RedisRedislabs | See advisory | 5.0 |
Patched Releases
Redis
NA, 5.0
Timeline
Publicly disclosed
Jun 16, 2018
Last updated
Aug 7, 2026
Weakness Type
- CWE-704 Incorrect Type Conversion or Cast
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')
References
- patchgithub.com · c04082c
- exploitgist.github.com · 34a56d5
- exploitExploitDB-44908
- exploit44908
FAQ
Common Questions.
Type confusion in the xgroupCommand function in t_stream.c in redis-server in Redis before 5.0 allows remote attackers to cause denial-of-service via an XGROUP command in which the key is not a stream.
Affected: Redis (Redislabs). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Redis NA, Redis 5.0.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2018-12453 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo