CVE-2025-0624Grub2: net: out-of-bounds write in grub_net_search_config_file()
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 7 Extended Lifecycle Support and 6 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Deferred
- Record last updated
- Oct 13, 2026
- First seen by InfoSec Signals
- Oct 13, 2026
Affected products
from 1:2.02-0.87.el7_9.15 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux | from 1:2.02-162.el8_10 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support redhat:rhel_aus | from 1:2.02-87.el8_2.13 not affected | CNA record |
from 1:2.02-99.el8_4.12 not affected | CNA record | |
from 1:2.02-99.el8_4.12 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support redhat:rhel_eus | from 1:2.02-152.el8_8.2 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4.12 redhat:openshift | from 412.86.202503310142-0 not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2025:2521vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2653vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2655vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2675vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2784vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2799vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2867vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:2869vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3297vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3301vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3367vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3396vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3573vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3577vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:3780vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:4422vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2025:7702vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2025-0624vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2346112issue-tracking, x-refsource-redhat
- https://security.netapp.com/advisory/ntap-20250516-0006/
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.