CVE-2025-0624
highpriority · track · 0EPSS 0.014 · 72 %ileDEEURUUSEPSS · scored 2026-10-23
A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (63)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-0396Grub: Mehrere SchwachstellenDeutsch2025-02-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen, vertrauliche Informationen preiszugeben oder nicht spezifizierte Auswirkungen zu verursachen.
- WID-SEC-W-2025-1559Oracle Communications: Mehrere SchwachstellenDeutsch2025-07-15csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in Oracle Communications ausnutzen, um die Vertraulichkeit, Integrität und Verfügbarkeit zu gefährden.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (44)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2025-0624cnnvd
- https://access.redhat.com/security/cve/cve-2025-0624cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2346112cnnvd
- https://www.gnu.org/software/grub/grub-download.htmlPatchcnnvd
- https://www.oracle.com/security-alerts/cpujul2025.htmlcnnvd
- https://access.redhat.com/errata/RHSA-2025:2521enisa_euvd
- https://access.redhat.com/errata/RHSA-2025:2653enisa_euvd
- https://access.redhat.com/errata/RHSA-2025:2655enisa_euvd
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