CVE-2025-61661
mediumpriority · track · 0EPSS 0.002 · 10 %ileDEEURUUSEPSS · scored 2026-10-23
A vulnerability has been identified in the GRUB (Grand Unified Bootloader) component. This flaw occurs because the bootloader mishandles string conversion when reading information from a USB device, allowing an attacker to exploit inconsistent length values. A local attacker can connect a maliciously configured USB device during the boot sequence to trigger this issue. A successful exploitation may lead GRUB to crash, leading to a Denial of Service. Data corruption may be also possible, although given the complexity of the exploit the impact is most likely limited.
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 (32)
Products and version ranges known to be affected.
- IBM Power Hardware Management Console V10.3.1050.0-V10.3.1063.2all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10.3.1050.0_-_v10.3.1063.2
- IBM Power Hardware Management Console V11.1.1110.0-V11.1.1111.5all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v11.1.1110.0_-_v11.1.1111.5
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2638Grub: Mehrere SchwachstellenDeutsch2025-11-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Grub ausnutzen, um beliebigen Programmcode auszuführen, und um einen Denial of Service Angriff durchzuführen.
- WID-SEC-W-2026-0778Dell Secure Connect Gateway Policy Manager: Mehrere SchwachstellenDeutsch2026-03-18csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Secure Connect Gateway Policy Manager ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- http://www.openwall.com/lists/oss-security/2025/11/18/8cnnvd
- https://access.redhat.com/security/cve/CVE-2025-61661cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2413827cnnvd
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-61661cnnvd
- https://vigilance.fr/vulnerability/GNU-GRUB-multiple-vulnerabilities-dated-20-11-2025-48819cnnvd
- https://access.redhat.com/security/cve/CVE-2025-61661enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2413827enisa_euvd
- http://www.openwall.com/lists/oss-security/2025/11/18/8nvd
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