CVE-2023-22458 | Integer overflow in multiple Redis commands can lead to denial-of-service

Redis is an in-memory database that persists on disk. Authenticated users can issue a `HRANDFIELD` or `ZRANDMEMBER` command with specially crafted arguments to trigger a denial-of-service by crashing Redis with an assertion failure. This problem affects Redis versions 6.2 or newer up to but not including 6.2.9 as well as versions 7.0 up to but not including 7.0.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Published: 2023-01-20 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-22458 is rated Moderate Risk (55.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 51.24%, 98th 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-2023-22458

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 2026-05-16 51.82% 51.24% -0.58%
2 2026-05-03 51.24% 51.82% +0.58%
3 2026-05-02 — 51.24% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-22458

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]

Weakness enumeration for CVE-2023-22458

OS Trackers for CVE-2023-22458

vendor priority summary link
alpine medium CVE-2023-22458: 1 source package rows (redis); 41 state rows across 8 repos (3.17-main, 3.18-main, 3.19-main, 3.20-community, 3.21-community, 3.22-community, edge-community, edge-main); fixed 8, open 33. https://security.alpinelinux.org/vuln/CVE-2023-22458
debian unimportant CVE-2023-22458 unimportant priority: Debian including 1 source packages (redis), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2023-22458
gentoo normal CVE-2023-22458: 1 GLSA(s) (202408-05), 1 atom(s) (dev-db/redis); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-22458
redhat medium — https://access.redhat.com/security/cve/CVE-2023-22458
suse medium — https://www.suse.com/security/cve/CVE-2023-22458/
ubuntu medium CVE-2023-22458 medium priority: Ubuntu including 1 source packages (redis), 10 status rows across 10 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): not-affected 7, ignored 2, released 1. https://ubuntu.com/security/CVE-2023-22458

Affected software / configurations for CVE-2023-22458

Vendor Product Version Raw CPE
redis redis >= 6.2.0, < 6.2.9 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
redis redis >= 7.0.0, < 7.0.8 cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

References for CVE-2023-22458

cvelogic Threat Intelligence