A segmentation fault in the redis-server component of Redis 5.0.7 leads to a denial of…
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A segmentation fault in the redis-server component of Redis 5.0.7 leads to a denial of service (DOS). NOTE: the vendor cannot reproduce this issue in a released version, such as 5.0.7.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01202 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redislabs:redis:5.0.7:*:*:*:*:*:*:* | 5.0.7 | Vulnerable | Redis Labs |
- cpe:2.3:a:redislabs:redis:5.0.7:*:*:*:*:*:*:* Versions 5.0.7 Vulnerable ·Redis Labs
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 9 products
- Red Hat 3scale API Management Platform 2
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Ansible Automation Platform 1.2
- Red Hat Ansible Tower 3
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 13 (Queens)
- Red Hat Software Collections
Timeline
- 2026-10-02 Threatist record created from CVE-2020-21468
- 2026-10-03 Alias added: GHSA-vjmv-w2p6-c95q
References
More Redis Labs Redis vulnerabilities
- TI-2018-07980 Memory Corruption was discovered in the cmsgpack library in the Lua subsystem in Redis… CVSS 3.0CRITICAL 9.8
- TI-2016-06853 Out-of-bounds write in Redis CVSS 3.1CRITICAL 9.8
- TI-2021-12428 Integer overflow issues with *BIT commands on 32-bit systems CVSS 3.1HIGH 7.5
- TI-2015-03637 Redis before 2.8.21 and 3.x before 3.0.2 allows remote attackers to execute arbitrary Lua bytecode via the eval command. CVSS 2.0HIGH 10.0
- TI-2019-07513 Heap-based buffer overflow in redis CVSS 3.1HIGH 7.2
- TI-2018-08939 Type confusion in the xgroupCommand function in t_stream.c in redis-server in Redis… CVSS 3.0HIGH 7.5
Sources
- CVE-2020-21468 · CVE Program
- CVE-2020-21468 · NVD
- FIRST EPSS
- GHSA-vjmv-w2p6-c95q · GitHub Advisory Database · CC BY 4.0
- CVE-2020-21468 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences