`HINCRBYFLOAT` can be used to crash a redis-server process
Priority LOW 31CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-617.
Summary
Redis is an open source, in-memory database that persists on disk. Authenticated users can use the `HINCRBYFLOAT` command to create an invalid hash field that will crash Redis on access in affected versions. This issue has been addressed in in versions 7.0.11, 6.2.12, and 6.0.19. Users are advised to upgrade. There are no known workarounds for this issue.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01256 69th percentileScored 2026-11-07
Fix Partial redis (redis): 7.0.11, 6.2.12, 6.0.19Red Hat: 2 advisoriesRed Hat: 1 fixed, 4 without a fix
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 |
|---|---|---|---|---|---|
| Redis | redis | 7.0.0 to before 7.0.11; 6.2.0 to before 6.2.12; before 6.0.19 | 7.0.11, 6.2.12, 6.0.19 | Patch available | CNA |
- redis VendorRedis Affected 7.0.0 to before 7.0.11; 6.2.0 to before 6.2.12; before 6.0.19 Fixed in 7.0.11, 6.2.12, 6.0.19 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* | before 6.0.19; 6.2.0 to before 6.2.12; 7.0.0 to before 7.0.11 | Vulnerable | Redis |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* | 37 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
- cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* Versions before 6.0.19; 6.2.0 to before 6.2.12; 7.0.0 to before 7.0.11 Vulnerable ·Redis
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
Remediation
- Fix · CNA redis (redis) Fixed in 7.0.11, 6.2.12, 6.0.19
Red Hat 2 advisories
- RHSA-2025:0595 Released 2025-01-22 · Red Hat rating Importantredis:6 security update
- Red Hat Enterprise Linux AppStream (v. 8) redis-6.2.17-1.module+el8.10.0+22680+748527fd.aarch64::redis:6, redis-6.2.17-1.module+el8.10.0+22680+748527fd.ppc64le::redis:6, redis-6.2.17-1.module+el8.10.0+22680+748527fd.s390x::redis:6 +7
- RHSA-2023:3326 Released 2023-05-26 · Red Hat rating CriticalRed Hat Advanced Cluster Management 2.6.6 security fixes and container updates
- Red Hat Advanced Cluster Management for Kubernetes 2.6 for RHEL 8 rhacm2/acm-governance-policy-addon-controller-rhel8, rhacm2/acm-grafana-rhel8, rhacm2/acm-must-gather-rhel8 +45
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Advanced Cluster Management for Kubernetes 2 | Affected | No fix yet |
| Red Hat OpenStack Platform 13 (Queens) | Affected | No fix planned: Out of support scope |
| Red Hat Quay 3 | Affected | No fix yet |
| Red Hat Software Collections | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:0595 |
Not affected: 5 products
- Red Hat 3scale API Management Platform 2
- Red Hat Ansible Automation Platform 1.2
- Red Hat Enterprise Linux 9
- Red Hat Fuse 7
- Red Hat Satellite 6
Timeline
- 2026-10-02 Threatist record created from CVE-2023-28856
References
Patch 2
Advisory 5
- https://github.com/redis/redis/security/advisories/GHSA-hjv8-vjf6-wcr6
- https://lists.debian.org/debian-lts-announce/2023/04/msg00023.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/OQGKMKSQE67L32HE6W5EI2I2YKW5VWHI/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LPUTH7NBQTZDVJWFNUD24ZCS6NDUFYS6/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/EQ4DJSO4DMR55AWK6OPVJH5UTEB35R2Z/
More Redis vulnerabilities
- TI-2022-00463 Missing authorization in Debian redis KEVCVSS 3.1CRITICAL 10.0
- TI-2025-31759 Redis Lua Use-After-Free may lead to remote code execution CVSS 3.1CRITICAL 10.0
- TI-2023-18618 Heap overflow in COMMAND GETKEYS and ACL evaluation in Redis CVSS 3.1HIGH 8.8
- TI-2024-20813 Lua library commands may lead to stack overflow and RCE in Redis CVSS 3.1HIGH 8.8
- TI-2022-08647 Heap overflow issue with the Lua cjson library used by Redis CVSS 3.1HIGH 8.8
- TI-2022-08549 Lua scripts can be manipulated to overcome ACL rules in Redis CVSS 3.1HIGH 7.8
Sources
- CVE-2023-28856 · CVE Program
- CVE-2023-28856 · NVD
- FIRST EPSS
- CVE-2023-28856 · Red Hat security data · CC BY 4.0
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