A flaw was found in kubevirt. A user within a virtual machine (VM), if the guest agent is active, can exploit this by causing the agent to report an excessive number of network interfaces. This action can overwhelm the system's ability to store VM configuration updates, effectively blocking changes to the Virtual Machine Instance (VMI). This allows the VM user to restrict the VM administrator's ability to manage the VM, leading to a denial of service for administrative operations.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2804-1 advisory.

    - CVE-2026-9804: Symlink escape in the VMExport dir       handler let an attacker controlling an exported PVC read sensitive       files (TLS keys, tokens, service-account creds) from the exporter       pod. (bsc#1266733)
    - CVE-2025-14525: A VM reporting many guest-internal       interfaces via the guest agent could flood VMI status and fill etcd       (denial of service). Caps reported interfaces at 10. (bsc#1256434)
    - CVE-2026-35469: resource-exhaustion       in the SPDY/3 protocol implementation of       github.com/moby/spdystream. (GHSA-pc3f-x583-g7j2,bsc#1262265)

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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2783-1 advisory.

    - CVE-2026-9804: Symlink escape in the VMExport dir       handler let an attacker controlling an exported PVC read sensitive       files (TLS keys, tokens, service-account creds) from the exporter       pod. (bsc#1266733)
    - CVE-2025-14525: A VM reporting many guest-internal       interfaces via the guest agent could flood VMI status and fill etcd       (denial of service). Caps reported interfaces at 10. (bsc#1256434)
    - CVE-2026-35469: resource-exhaustion       in the SPDY/3 protocol implementation of       github.com/moby/spdystream. (GHSA-pc3f-x583-g7j2,bsc#1262265)

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.

ID	Name	Product	Family	Type	Severity
326001	SUSE SLES15 Security Update : kubevirt (SUSE-SU-2026:2804-1)	Nessus	SuSE Local Security Checks	Local	high
325999	SUSE SLES15 Security Update : kubevirt-1.6 (SUSE-SU-2026:2783-1)	Nessus	SuSE Local Security Checks	Local	high

Detections

Analytics

CVE-2025-14525

medium

Tenable Plugins

high

high