A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted input.

According to the versions of the busybox packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38754)

    A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38753)

    A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38755)

    A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to     cause a Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38752)

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

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

According to the versions of the busybox packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to     cause a Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38752)

    A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38753)

    A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38754)

    A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38755)

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

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

According to the versions of the busybox package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38754)

    A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38753)

    A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38755)

    A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to     cause a Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38752)

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

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

According to the versions of the busybox package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    A stack overflow in the evaluate() function (editors/awk.c) of BusyBox commit 371fe9 allows attackers to     cause a Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38752)

    A use-after-free in the awk_sub() function (editors/awk.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted AWK script.(CVE-2026-38753)

    A heap overflow in the ifsbreakup() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38754)

    A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input.(CVE-2026-38755)

Tenable has extracted the preceding description block directly from the EulerOS busybox 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 remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:22040-1 advisory.

    - CVE-2023-42366: heap-buffer-overflow in the next_token function (bsc#1217586).
    - CVE-2026-38752: Denial of Service via crafted AWK script (bsc#1271544).
    - CVE-2026-38753: use-after-free in awk_sub() (bsc#1271545).
    - CVE-2026-38754: heap overflow in ifsbreakup() (bsc#1271547).
    - CVE-2026-38755: heap overflow in evalcommand() (bsc#1271548).

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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a
    Denial of Service (DoS) via supplying a crafted input. (CVE-2026-38755)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A heap overflow in the evalcommand() function (shell/ash.c) of Busybox v1.38.0 allows attackers to cause a     Denial of Service (DoS) via supplying a crafted input. (CVE-2026-38755)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
364963	EulerOS 2.0 SP11 : busybox (EulerOS-SA-2026-4306)	Nessus	Huawei Local Security Checks	Local	high
364904	EulerOS 2.0 SP13 : busybox (EulerOS-SA-2026-4124)	Nessus	Huawei Local Security Checks	Local	high
364782	EulerOS 2.0 SP11 : busybox (EulerOS-SA-2026-4215)	Nessus	Huawei Local Security Checks	Local	high
364759	EulerOS 2.0 SP13 : busybox (EulerOS-SA-2026-4033)	Nessus	Huawei Local Security Checks	Local	high
364346	openSUSE 16 Security Update : busybox (openSUSE-SU-2026:22040-1)	Nessus	SuSE Local Security Checks	Local	medium
463094	Echo: busybox: security update to 1:1.38.0-3busybox-1.38: security update to 1.38.0+e2	Tenable Cloud Security	Echo Local Security Checks	Local	high
463094	Echo: busybox: security update to 1:1.38.0-3busybox-1.38: security update to 1.38.0+e2	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
327364	Linux Distros Unpatched Vulnerability : CVE-2026-38755	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-38755

high

Tenable Plugins

high

high

high

high

medium

high

high

high