The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:3367 advisory.

    The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and     customizable boot loader with modular architecture. The packages support a variety of kernel formats, file     systems, computer architectures, and hardware devices.

    Security Fix(es):

    * grub2: net: Out-of-bounds write in grub_net_search_config_file() (CVE-2025-0624)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of grub2 installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-0624 advisory.

  - 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. (CVE-2025-0624)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 8 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2025-9832:02 advisory.

    * grub2: net: Out-of-bounds write in grub_net_search_config_file() (CVE-2025-0624)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Rocky Linux 8.8 host has packages installed that are affected by a vulnerability as referenced in the CIQ ciqsa-2026_1172 advisory.

    This advisory aggregates security fixes for the grub2 SRPM in CIQ LTS 8.8. It addresses 1 CVE:
    CVE-2025-0624.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4685 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4685-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     July 15, 2026                                 https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : grub2     Version        : 2.06-3~deb11u7     CVE ID         : CVE-2024-45774 CVE-2024-45775 CVE-2024-45776 CVE-2024-45777                      CVE-2024-45778 CVE-2024-45779 CVE-2024-45780 CVE-2024-45781                      CVE-2024-45782 CVE-2024-45783 CVE-2025-0622 CVE-2025-0624                      CVE-2025-0677 CVE-2025-0678 CVE-2025-0684 CVE-2025-0685                      CVE-2025-0686 CVE-2025-0689 CVE-2025-0690 CVE-2025-1118                      CVE-2025-1125

    Several issues were found in the GRUB2 bootloader, which could result     in crashes and potentially execution of arbitrary code. These could     lead to bypass of UEFI Secure Boot on affected systems.

    For Debian 11 bullseye, these problems have been fixed in version     2.06-3~deb11u7.

    We recommend that you upgrade your grub2 packages.

    For the detailed security status of grub2 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/grub2

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2025:1744222859 advisory.

  - A flaw was found in the grub2-set-bootflag utility of grub2. After the fix of CVE-2019-14865, grub2-set-     bootflag will create a temporary file with the new grubenv content and rename it to the original grubenv     file. If the program is killed before the rename operation, the temporary file will not be removed and may     fill the filesystem when invoked multiple times, resulting in a filesystem out of free inodes or blocks.
    (CVE-2024-1048)

  - A flaw was found in grub2. A specially crafted JPEG file can cause the JPEG parser of grub2 to incorrectly     check the bounds of its internal buffers, resulting in an out-of-bounds write. The possibility of     overwriting sensitive information to bypass secure boot protections is not discarded. (CVE-2024-45774)

  - A flaw was found in grub2 where the grub_extcmd_dispatcher() function calls grub_arg_list_alloc() to     allocate memory for the grub's argument list. However, it fails to check in case the memory allocation     fails. Once the allocation fails, a NULL point will be processed by the parse_option() function, leading     grub to crash or, in some rare scenarios, corrupt the IVT data. (CVE-2024-45775)

  - A flaw was found in grub2. The calculation of the translation buffer when reading a language .mo file in     grub_gettext_getstr_from_position() may overflow, leading to a Out-of-bound write. This issue can be     leveraged by an attacker to overwrite grub2's sensitive heap data, eventually leading to the circumvention     of secure boot protections. (CVE-2024-45777)

  - A flaw was found in grub2. When reading tar files, grub2 allocates an internal buffer for the file name.
    However, it fails to properly verify the allocation against possible integer overflows. It's possible to     cause the allocation length to overflow with a crafted tar file, leading to a heap out-of-bounds write.
    This flaw eventually allows an attacker to circumvent secure boot protections. (CVE-2024-45780)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the grub2 package has been released.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0587-1 advisory.

    - CVE-2024-45781: Fixed strcpy overflow in ufs. (bsc#1233617)
    - CVE-2024-56737: Fixed a heap-based buffer overflow in hfs. (bsc#1234958)
    - CVE-2024-45782: Fixed strcpy overflow in hfs. (bsc#1233615)
    - CVE-2024-45780: Fixed an overflow in tar/cpio. (bsc#1233614)
    - CVE-2024-45783: Fixed a refcount overflow in hfsplus. (bsc#1233616)
    - CVE-2024-45774: Fixed a heap overflow in JPEG parser. (bsc#1233609)
    - CVE-2024-45775: Fixed a missing NULL check in extcmd parser. (bsc#1233610)
    - CVE-2024-45776: Fixed an overflow in .MO file handling. (bsc#1233612)
    - CVE-2024-45777: Fixed an integer overflow in gettext. (bsc#1233613)
    - CVE-2024-45778: Fixed bfs filesystem by removing it from lockdown capable modules. (bsc#1233606)
    - CVE-2024-45779: Fixed a heap overflow in bfs. (bsc#1233608)
    - CVE-2025-0624: Fixed an out-of-bounds write during the network boot process. (bsc#1236316)
    - CVE-2025-0622: Fixed a use-after-free when handling hooks during module unload in command/gpg .
    (bsc#1236317)
    - CVE-2025-0690: Fixed an integer overflow that may lead to an out-of-bounds write through the read     command.
      (bsc#1237012)
    - CVE-2025-1118: Fixed an issue where the dump command was not being blocked when grub was in lockdown     mode.
      (bsc#1237013)
    - CVE-2025-0677: Fixed an integer overflow that may lead to an out-of-bounds write when handling symlinks     in ufs.
      (bsc#1237002)
    - CVE-2025-0684: Fixed an integer overflow that may lead to an out-of-bounds write when handling symlinks     in reiserfs.
      (bsc#1237008)
    - CVE-2025-0685: Fixed an integer overflow that may lead to an out-of-bounds write when handling symlinks     in jfs.
      (bsc#1237009)
    - CVE-2025-0686: Fixed an integer overflow that may lead to an out-of-bounds write when handling symlinks     in romfs.
      (bsc#1237010)
    - CVE-2025-0689: Fixed a heap-based buffer overflow in udf that may lead to arbitrary code execution.
    (bsc#1237011)
    - CVE-2025-1125: Fixed an integer overflow that may lead to an out-of-bounds write in hfs. (bsc#1237014)
    - CVE-2025-0678: Fixed an integer overflow that may lead to an out-of-bounds write in squash4.
    (bsc#1237006)

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Rocky Linux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0426 advisory.

    This advisory aggregates security fixes for the grub2 SRPM in CIQ LTS 9.2. It addresses 45 CVEs:
    CVE-2021-3981, CVE-2021-20233, CVE-2022-28734, CVE-2023-4693, CVE-2020-25632, and 40 more.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
233541	RHEL 8 : grub2 (RHSA-2025:3367)	Nessus	Red Hat Local Security Checks	3/29/2025	6/5/2025	high
241842	CBL Mariner 2.0 Security Update: grub2 (CVE-2025-0624)	Nessus	MarinerOS Local Security Checks	7/11/2025	7/11/2025	high
291778	MiracleLinux 8 : grub2-2.02-162.el8_10.ML.1 (AXSA:2025-9832:02)	Nessus	Miracle Linux Local Security Checks	1/20/2026	1/20/2026	high
354394	Rocky Linux 8.8 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-efi-aa64 / etc (ciqsa-2026_1172)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/1/2026	high
327092	Debian dla-4685 : grub-common - security update	Nessus	Debian Local Security Checks	7/15/2026	7/16/2026	high
362266	CentOS Linux 8.4 [TuxCare] Security Update: grub2-common / grub2-efi-ia32 / grub2-efi-ia32-cdboot / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2025:1744222859)	Nessus	CentOS Local Security Checks	10/1/2026	10/1/2026	high
233769	Photon OS 5.0: Grub2 PHSA-2025-5.0-0477	Nessus	PhotonOS Local Security Checks	4/2/2025	10/13/2026	high
216518	SUSE SLES15 Security Update : grub2 (SUSE-SU-2025:0587-1)	Nessus	SuSE Local Security Checks	2/20/2025	8/14/2025	high
356048	Rocky Linux 9.2 [CIQ] Security Update: grub2-common / grub2-debuginfo / grub2-efi-aa64 / etc Multiple Vulnerabilities (ciqsa-2026_0426)	Nessus	Rocky Linux Local Security Checks	10/1/2026	10/12/2026	high

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