In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1360-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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 packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1303-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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 SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:1301-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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 packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1302-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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 version of tigervnc installed on the remote host is prior to 1.8.0-24. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3231 advisory.

    In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen     contents, or cause an application crash, because of incorrect permissions. (CVE-2026-34352)

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

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

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1537 advisory.

    In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen     contents, or cause an application crash, because of incorrect permissions. (CVE-2026-34352)

Tenable has extracted the preceding description block directly from the tested product 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 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1252-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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 openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20465-1 advisory.

    - CVE-2026-34352: Fixed permissions to prevent other users from observing the screen, or modifying what is     sent to the client. (bsc#1260871)

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

  - In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen     contents, or cause an application crash, because of incorrect permissions. (CVE-2026-34352)

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

ID	Name	Product	Family	Severity
306688	SUSE SLED15 / SLES15 Security Update : tigervnc (SUSE-SU-2026:1360-1)	Nessus	SuSE Local Security Checks	critical
306499	SUSE SLES15 Security Update : tigervnc (SUSE-SU-2026:1303-1)	Nessus	SuSE Local Security Checks	critical
306498	SUSE SLES12 Security Update : tigervnc (SUSE-SU-2026:1301-1)	Nessus	SuSE Local Security Checks	critical
306483	SUSE SLES15 Security Update : tigervnc (SUSE-SU-2026:1302-1)	Nessus	SuSE Local Security Checks	critical
306286	Amazon Linux 2 : tigervnc, --advisory ALAS2-2026-3231 (ALAS-2026-3231)	Nessus	Amazon Linux Local Security Checks	critical
306204	Amazon Linux 2023 : tigervnc, tigervnc-icons, tigervnc-license (ALAS2023-2026-1537)	Nessus	Amazon Linux Local Security Checks	critical
305987	SUSE SLES15 / openSUSE 15 Security Update : tigervnc (SUSE-SU-2026:1252-1)	Nessus	SuSE Local Security Checks	critical
305835	openSUSE 16 Security Update : tigervnc (openSUSE-SU-2026:20465-1)	Nessus	SuSE Local Security Checks	critical
303993	Linux Distros Unpatched Vulnerability : CVE-2026-34352	Nessus	Misc.	critical

Detections

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CVE-2026-34352

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