CVE-2025-45512

Exp

A lack of signature verification in the bootloader of DENX Software Engineering Das U-Boot (U-Boot) v1.1.3 allows attackers to install crafted firmware files, leading to arbitrary code execution.

Published: 2025-08-05 Last update: 2025-10-02 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-45512 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.30%). 2 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-2025-45512

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

Exploit prediction scoring system (EPSS) score for CVE-2025-45512

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 0.55% 0.30% -0.25%
2 2026-06-01 0.16% 0.55% +0.39%
3 2026-04-21 — 0.16% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-45512

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N 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:N)
No account or special rights needed—anonymous or random user is enough.
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:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 2.5 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2025-45512

OS Trackers for CVE-2025-45512

vendor priority summary link
debian unimportant CVE-2025-45512 unimportant priority: Debian including 1 source packages (u-boot), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. https://security-tracker.debian.org/tracker/CVE-2025-45512
suse medium CVE-2025-45512 severity moderate: SUSE including 3 source package names (u-boot, u-boot-rpi3, u-boot-tools), 43 product×package rows across 36 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (36 product lines)): Known Not Affected 43. https://www.suse.com/security/cve/CVE-2025-45512/
ubuntu medium CVE-2025-45512 medium priority: Ubuntu including 2 source packages (u-boot, u-boot-nezha), 13 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): deferred 8, ignored 2, needs-triage 2, DNE 1. https://ubuntu.com/security/CVE-2025-45512

Affected software / configurations for CVE-2025-45512

Vendor Product Version Raw CPE
denx u-boot 1.1.3 cpe:2.3:a:denx:u-boot:1.1.3:*:*:*:*:*:*:*

References for CVE-2025-45512

cvelogic Threat Intelligence