CVE-2025-46817 | Lua library commands may lead to integer overflow and potential RCE

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.

Published: 2025-10-03 Last update: 2026-01-27 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-46817 is rated Moderate Risk (58/100): CVSS High severity, with high exploitation likelihood (EPSS 10.51%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-46817

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-18 13.20% 10.51% -2.69%
2 2026-03-13 15.85% 13.20% -2.65%
3 2026-03-01 — 15.85% —

Full EPSS history (22 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-46817

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.0 3.1 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.0 5.9 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2025-46817

OS Trackers for CVE-2025-46817

vendor priority summary link
alpine — CVE-2025-46817: 3 source package rows (redict, redis, valkey); 104 state rows across 8 repos (3.19-main, 3.20-main, 3.21-main, 3.22-community, 3.22-main, 3.23-community, edge-community, edge-main); fixed 19, open 85. https://security.alpinelinux.org/vuln/CVE-2025-46817
debian not yet assigned CVE-2025-46817 not yet assigned priority: Debian including 3 source packages (redict, redis, valkey), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. https://security-tracker.debian.org/tracker/CVE-2025-46817
redhat medium — https://access.redhat.com/security/cve/CVE-2025-46817
suse critical CVE-2025-46817 severity critical: SUSE including 31 source package names (8.0.6-2.44:valkey-8.0.6-150600.13.17.1, docker-27.5.1_ce-slfo.1.1_2.1, …), 111 product×package rows across 51 product lines (Container private-registry/harbor-valkey, Image SL-Micro-Azure, … (51 product lines)): Fixed 102, Known Not Affected 6, First Fixed 3. https://www.suse.com/security/cve/CVE-2025-46817/
ubuntu medium CVE-2025-46817 medium priority: Ubuntu including 3 source packages (redict, redis, valkey), 19 status rows across 9 suites (bionic, focal, jammy, noble, plucky, questing, trusty, upstream, xenial): not-affected 8, released 5, DNE 3, needs-triage 2, ignored 1. https://ubuntu.com/security/CVE-2025-46817

Affected software / configurations for CVE-2025-46817

Vendor Product Version Raw CPE
redis redis < 6.2.20 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
redis redis >= 7.0, < 7.2.11 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
redis redis >= 7.4.0, < 7.4.6 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
redis redis >= 8.0.0, < 8.0.4 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
redis redis >= 8.2.0, < 8.2.2 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

References for CVE-2025-46817

cvelogic Threat Intelligence