CVE-2024-2312

Exp

GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu's peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.

Published: 2024-04-05 Last update: 2025-08-26 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-2312 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.03%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2024-2312

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-2312

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 2025-11-21 0.18% 0.03% -0.16%
2 2025-11-18 0.01% 0.18% +0.18%
3 2025-05-14 — 0.01% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-2312

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.7 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/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: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: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.
 0.8 5.9 [email protected]

Weakness enumeration for CVE-2024-2312

OS Trackers for CVE-2024-2312

vendor priority summary link
debian unimportant CVE-2024-2312 unimportant priority: Debian including 1 source packages (grub2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2024-2312
redhat medium — https://access.redhat.com/security/cve/CVE-2024-2312
suse medium CVE-2024-2312 severity moderate: SUSE including 35 source package names (2.0.4-5.8.244:shim-16.1-150300.4.31.3, 2.1.3-7.79:shim-16.1-slfo.1.1_1.1, …), 333 product×package rows across 78 product lines (Container suse/sl-micro/6.0/base-os-container, Container suse/sl-micro/6.1/base-os-container, … (78 product lines)): Known Not Affected 286, Fixed 47. https://www.suse.com/security/cve/CVE-2024-2312/
ubuntu medium CVE-2024-2312 medium priority: Ubuntu including 3 source packages (grub2, grub2-signed, grub2-unsigned), 27 status rows across 9 suites (bionic, focal, jammy, mantic, noble, oracular, trusty, upstream, xenial): not-affected 15, ignored 5, released 4, needs-triage 3. https://ubuntu.com/security/CVE-2024-2312

Affected software / configurations for CVE-2024-2312

Vendor Product Version Raw CPE
gnu grub2 < 2.12-1ubuntu5 cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
netapp bootstrap_os — cpe:2.3:o:netapp:bootstrap_os:-:*:*:*:*:*:*:*

References for CVE-2024-2312

cvelogic Threat Intelligence