CVE-2024-23307 | Integer overflow in raid5_cache_count in Linux kernel

Integer Overflow or Wraparound vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (md, raid, raid5 modules) allows Forced Integer Overflow.

Published: 2024-01-25 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-23307 is rated Low Risk (33.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.58%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2024-23307

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 2026-06-15 0.10% 0.58% +0.48%
2 2025-03-30 0.35% 0.10% -0.25%
3 2025-03-29 — 0.35% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-23307

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/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:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
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.
 0.7 3.6 [email protected]
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/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: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.
 1.8 5.9 [email protected]

Weakness enumeration for CVE-2024-23307

GitHub Security Advisory for CVE-2024-23307

GHSA-h8r6-36w2-4qqx · Severity: medium — Integer Overflow or Wraparound vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (md,...

OS Trackers for CVE-2024-23307

vendor priority summary link
debian not yet assigned CVE-2024-23307 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. https://security-tracker.debian.org/tracker/CVE-2024-23307
redhat medium — https://access.redhat.com/security/cve/CVE-2024-23307
suse high CVE-2024-23307 severity important: SUSE including 702 source package names (15.5:kernel-default-devel-5.14.21-150500.55.62.2, 15.5:kernel-devel-5.14.21-150500.55.62.2, …), 1330 product×package rows across 246 product lines (Container bci/bci-sle15-kernel-module-devel, Container suse/sle-micro-rancher/5.2, … (246 product lines)): Fixed 1088, Known Affected 200, Known Not Affected 42. https://www.suse.com/security/cve/CVE-2024-23307/
ubuntu low CVE-2024-23307 low priority: Ubuntu including 166 source packages (linux, linux-allwinner-5.19, …), 1752 status rows across 11 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1320, released 208, ignored 146, not-affected 78. https://ubuntu.com/security/CVE-2024-23307

Affected software / configurations for CVE-2024-23307

Vendor Product Version Raw CPE
linux linux_kernel >= 4.1, < 6.1.84 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.2, < 6.6.24 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.7, < 6.7.12 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 6.8, < 6.8.3 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

References for CVE-2024-23307

cvelogic Threat Intelligence