Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901

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

  - Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an     arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by     exceeding the Python recursion limit. This can result in a Denial of service by crashing the application     with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit     17838beda2943d08b8a9d4df5b68f5f04f26d901 (CVE-2025-4565)

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

The version of protobuf 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-2025-4565 advisory.

  - Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an     arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by     exceeding the Python recursion limit. This can result in a Denial of service by crashing the application     with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit     17838beda2943d08b8a9d4df5b68f5f04f26d901 (CVE-2025-4565)

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 protobuf installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-4565 advisory.

  - Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an     arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by     exceeding the Python recursion limit. This can result in a Denial of service by crashing the application     with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit     17838beda2943d08b8a9d4df5b68f5f04f26d901 (CVE-2025-4565)

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the SUSE-SU-2025:02309-1 advisory.

    - CVE-2025-4565: Fix parsing of untrusted Protocol Buffers data containing an arbitrary number of     recursive groups or messages that can lead to crash due to RecursionError (bsc#1244663).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2025:02311-1 advisory.

    - CVE-2025-4565: Fix parsing of untrusted Protocol Buffers data containing an arbitrary number of     recursive groups or messages that can lead to crash due to RecursionError (bsc#1244663).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2025:02310-1 advisory.

    - CVE-2025-4565: Fix parsing of untrusted Protocol Buffers data containing an arbitrary number of     recursive groups or messages that can lead to crash due to RecursionError (bsc#1244663).

Tenable has extracted the preceding description block directly from the SUSE 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 Ubuntu 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7629-1 advisory.

    It was discovered that Protocol Buffers incorrectly handled memory when receiving malicious input using     the Python bindings. An attacker could possibly use this issue to cause a denial of service.
    (CVE-2025-4565)

    It was discovered that Protocol Buffers incorrectly handled memory when receiving malicious input using     the Java bindings. An attacker could possibly use this issue to cause a denial of service. This issue only     affected Ubuntu 25.04. (CVE-2024-7254)

Tenable has extracted the preceding description block directly from the Ubuntu 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	Severity
244019	Linux Distros Unpatched Vulnerability : CVE-2025-4565	Nessus	Misc.	high
243029	CBL Mariner 2.0 Security Update: protobuf (CVE-2025-4565)	Nessus	MarinerOS Local Security Checks	high
243020	Azure Linux 3.0 Security Update: protobuf (CVE-2025-4565)	Nessus	Azure Linux Local Security Checks	high
242157	SUSE SLES15 Security Update : protobuf (SUSE-SU-2025:02309-1)	Nessus	SuSE Local Security Checks	high
242151	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : protobuf (SUSE-SU-2025:02311-1)	Nessus	SuSE Local Security Checks	high
242144	SUSE SLES15 Security Update : protobuf (SUSE-SU-2025:02310-1)	Nessus	SuSE Local Security Checks	high
241681	Ubuntu 22.04 LTS / 24.04 LTS / 25.04 : Protocol Buffers vulnerabilities (USN-7629-1)	Nessus	Ubuntu Local Security Checks	high

Detections

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CVE-2025-4565

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Tenable Plugins

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high