Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to cause an integer overflow and potentially lead to remote code execution The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2.
CVE-2025-46817
“—” beside the score: it is equal to NVD's CVSS score.
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 3.9% (90th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2025-33202 (ENISA EUVD)Source: ENISA EUVD
- Public exploit or proof-of-concept code is available
A fix is available — apply it.
- CVSS v3
- 8.8
- EG Score
- 8.8HIGHmedium confidence
- EG Risk
- 56EG Risk 56/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity88% × 45%Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 3.9%
- EPSS %ILE
- 90th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 3.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 3, 2025
Last Modified
October 19, 2026
Advisory Details (3)
Auto-updated Oct 19, 2026Lua library commands may lead to integer overflow and potential RCE · Advisory · redis/redis · GitHub
https://github.com/redis/redis/security/advisories/GHSA-m8fj-85cg-7vhp8.2.2
Patch available: redis/redis 8.2.2
https://github.com/redis/redis/releases/tag/8.2.2commit fc9abc775e30 (redis/redis)
Patch available: redis/redis 8.2.7 (contains commit fc9abc775e30)
https://github.com/redis/redis/commit/fc9abc775e308374f667fdf3e723ef4b7eb0e3caVendor Advisories for CVE-2025-46817(16)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2025:21936Red Hat Product SecurityHigh
Red Hat Security Advisory: valkey security update
- RHSA-2025:21916Red Hat Product SecurityHigh
Red Hat Security Advisory: valkey security update
- RHSA-2025:20955Red Hat Product SecurityHigh
Red Hat Security Advisory: redis:7 security update
- RHSA-2025:20926Red Hat Product SecurityHigh
Red Hat Security Advisory: redis security update
- RHSA-2025:19675Red Hat Product SecurityHigh
Red Hat Security Advisory: valkey security update
- RHSA-2025:19399Red Hat Product SecurityHigh
Red Hat Security Advisory: redis:6 security update
- RHSA-2025:19345Red Hat Product SecurityHigh
Red Hat Security Advisory: redis:7 security update
- RHSA-2025:19318Red Hat Product SecurityHigh
Red Hat Security Advisory: redis:6 security update
- +8 more
Patch Availability(16)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | valkey-tools (8.1.4+dfsg1-0ubuntu0.2) @ questing | 2026-10-27 | ubuntu |
| redhat | valkey-0:8.0.6-2.el10_1 | 2025-11-24 | redhat |
| redhat | valkey-0:8.0.6-2.el9_7 | 2025-11-24 | redhat |
| redhat | redis:7-9070020251016095039.9 | 2025-11-11 | redhat |
| redhat | redis-0:6.2.20-2.el9_7 | 2025-11-11 | redhat |
| redhat | valkey-0:8.0.6-1.el10_0 | 2025-11-04 | redhat |
| redhat | redis:6-8080020251022085755.63b34585 | 2025-11-03 | redhat |
| redhat | redis:7-9060020251007094800.9 | 2025-10-30 | redhat |
| redhat | redis:6-8040020251022121413.522a0ee4 | 2025-10-30 | redhat |
| redhat | redis:6-8060020251022110425.ad008a3a | 2025-10-29 | redhat |
| redhat | redis:6-8100020251007064521.489197e6 | 2025-10-29 | redhat |
| redhat | redis-0:6.2.20-1.el9_6 | 2025-10-29 | redhat |
| redhat | redis-0:6.2.7-1.el9_4.5 | 2025-10-23 | redhat |
| redhat | redis-0:6.2.7-1.el9_2.5 | 2025-10-23 | redhat |
| redhat | redis-0:6.2.6-1.el9_0.5 | 2025-10-23 | redhat |
| redhat | redis:7-9040020251015162111.9 | 2025-10-21 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(12 across 9 ecosystems)
Debian:14(3)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| redict | 7.3.0+ds-1 ... 7.3.6+ds-1~bpo13+1 (11 versions) |
| — |
| redis | 5:8.0.2-3 |
| — |
| valkey | 8.1.1+dfsg1-3 |
| — |
Debian:13(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| redis | 5:8.0.2-3 |
| — |
| valkey | 8.1.1+dfsg1-3 |
| — |
Alpine:v3.20(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| valkey | — |
| — |
Alpine:v3.21(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| valkey | — |
| — |
Alpine:v3.22(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| valkey | — |
| — |
Alpine:v3.23(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| valkey | — |
| — |
Alpine:v3.24(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| valkey | — |
| — |
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| redis | 5:6.0.15-1 ... 5:6.0.16-1~bpo11+1 (11 versions) |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| redis | 5:7.0.11-1 ... 5:7.0.15-1~deb12u5 (13 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 8× in last 7d / 41× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 95 of 204 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 109 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-30 16:32 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-29 16:31 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-27 18:42 UTCEG score recompute
- 2026-10-27 18:42 UTCVendor advisory
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-25 16:31 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-25 16:23 UTCEG score recompute
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 3.9% · 90th percentile
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 3.8% · 90th percentile
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 3.8% · 90th percentile
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-19 17:30 UTCEG score recompute▲ 1.80
- 2026-10-19 17:30 UTCVendor advisory
- 2026-10-19 17:25 UTCNVD updateCVSS v3 → 8.8
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-18 15:16 UTCVendor advisory
- 2026-10-18 05:31 UTCEG score recompute
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-16 16:38 UTCEPSS rescoreEPSS 3.8% · 89th percentile
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- 2026-10-15 16:31 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-13 16:32 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-12 17:02 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-11 20:36 UTCEG score recompute
- 2026-10-11 18:47 UTCEG score recompute
- 2026-10-11 15:23 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-08 17:10 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-03 14:24 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-10-02 04:10 UTCOSV refresh
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-28 13:50 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-27 13:45 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-26 00:25 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-24 14:02 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-23 13:47 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-21 21:06 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-17 19:29 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-15 03:09 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-12 22:36 UTCOSV refresh
- 2026-09-12 15:00 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-11 09:36 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-08 21:59 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-07 16:00 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-06 13:46 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-05 15:28 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 3.8% · 89th percentile
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-09-01 04:38 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-30 19:16 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-30 01:21 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-28 21:40 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-27 14:24 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-26 14:45 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-25 13:48 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-25 02:56 UTCOSV refresh
- 2026-08-24 14:16 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-24 09:22 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-23 00:18 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-21 23:48 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-20 22:54 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-18 13:47 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-17 13:46 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-16 14:55 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-16 02:13 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-15 01:29 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-13 21:59 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-11 13:41 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-10 23:59 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 3.7% · 88th percentile
- 2026-08-08 20:19 UTCOSV refresh
- 2026-08-08 16:36 UTCEPSS rescoreEPSS 3.7% · 88th percentile
Publicly available exploits
(3 references)Public exploit code is referenced for this CVE (2 GitHub PoCs), as is 1 Nuclei detection template. A detection template checks whether a system is affected; it is not necessarily exploit code. Defenders should treat patch urgency accordingly.
- Open source ↗GitHub PoCslayerkkkk/CVE-2025-46817-PoCPublished Oct 27, 2025
- Nucleijavascript/cves/2025/CVE-2025-46817.yamlPublished Oct 11, 2025
Redis < 8.2.1 lua script - Integer Overflow
Open source ↗ - GitHub PoCdwisiswant0/CVE-2025-46817Published Oct 7, 2025
CVE-2025-46817 – Redis Lua unpack Integer Overflow (Potential RCE)
Open source ↗
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownAlpine:v3.20:valkey
Same vendor
4 shownredhat:RHSA-2025:18931 · redhat:RHSA-2025:19237 · ubuntu:USN-7893-1
Frequently asked(5)
What is CVE-2025-46817?
When was the CVE record for CVE-2025-46817 published?
Is CVE-2025-46817 actively exploited?
What is the CVSS score of CVE-2025-46817?
How do I remediate CVE-2025-46817?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-46817
Is Your Infrastructure Affected by CVE-2025-46817?
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