CVE-2025-61661

mediumpriority · track · 0EPSS 0.002 · 10 %ileDEEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.21% (10th) EPSS
CVSS 4.8 · medium
Is it mine?
32 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · 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.

01

cvss

Technical severity, 0–10. One row per scoring source.

4.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.8mediumAV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · FSTEC (BDU) RU
v3.14.8mediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · ENISA EU
v3.14.8mediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Hsecondary · secalert@redhat.com USexploitability 0.5 · impact 4.2
v3.14.4mediumCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (32)

Products and version ranges known to be affected.

showing 20 of 32
05

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.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

published 2025-11-18modified 2026-10-18
08

references (10)

External citations — patches, advisories, analysis.

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