Filtered by vendor Tigervnc
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Total
30 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-34352 | 1 Tigervnc | 1 Tigervnc | 2026-06-04 | N/A | 8.5 HIGH |
| 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-2025-26597 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-06-02 | N/A | 7.8 HIGH |
| A buffer overflow flaw was found in X.Org and Xwayland. If XkbChangeTypesOfKey() is called with a 0 group, it will resize the key symbols table to 0 but leave the key actions unchanged. If the same function is later called with a non-zero value of groups, this will cause a buffer overflow because the key actions are of the wrong size. | |||||
| CVE-2017-7394 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| In TigerVNC 1.7.1 (SSecurityPlain.cxx SSecurityPlain::processMsg), unauthenticated users can crash the server by sending long usernames. | |||||
| CVE-2017-7396 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| In TigerVNC 1.7.1 (CConnection.cxx CConnection::CConnection), an unauthenticated client can cause a small memory leak in the server. | |||||
| CVE-2017-7392 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| In TigerVNC 1.7.1 (SSecurityVeNCrypt.cxx SSecurityVeNCrypt::SSecurityVeNCrypt), an unauthenticated client can cause a small memory leak in the server. | |||||
| CVE-2017-5581 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 6.8 MEDIUM | 9.8 CRITICAL |
| Buffer overflow in the ModifiablePixelBuffer::fillRect function in TigerVNC before 1.7.1 allows remote servers to execute arbitrary code via an RRE message with subrectangle outside framebuffer boundaries. | |||||
| CVE-2017-7393 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 6.5 MEDIUM | 8.8 HIGH |
| In TigerVNC 1.7.1 (VNCSConnectionST.cxx VNCSConnectionST::fence), an authenticated client can cause a double free, leading to denial of service or potentially code execution. | |||||
| CVE-2017-7395 | 1 Tigervnc | 1 Tigervnc | 2026-05-13 | 4.0 MEDIUM | 6.5 MEDIUM |
| In TigerVNC 1.7.1 (SMsgReader.cxx SMsgReader::readClientCutText), by causing an integer overflow, an authenticated client can crash the server. | |||||
| CVE-2016-10207 | 2 Opensuse, Tigervnc | 2 Leap, Tigervnc | 2026-05-13 | 5.0 MEDIUM | 7.5 HIGH |
| The Xvnc server in TigerVNC allows remote attackers to cause a denial of service (invalid memory access and crash) by terminating a TLS handshake early. | |||||
| CVE-2014-8241 | 2 Redhat, Tigervnc | 5 Enterprise Linux Desktop, Enterprise Linux Hpc Node, Enterprise Linux Server and 2 more | 2026-05-06 | 7.5 HIGH | 9.8 CRITICAL |
| XRegion in TigerVNC allows remote VNC servers to cause a denial of service (NULL pointer dereference) by leveraging failure to check a malloc return value, a similar issue to CVE-2014-6052. | |||||
| CVE-2014-8240 | 1 Tigervnc | 1 Tigervnc | 2026-05-06 | 7.5 HIGH | N/A |
| Integer overflow in TigerVNC allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to screen size handling, which triggers a heap-based buffer overflow, a similar issue to CVE-2014-6051. | |||||
| CVE-2011-1775 | 1 Tigervnc | 1 Tigervnc | 2026-04-29 | 5.8 MEDIUM | N/A |
| The CSecurityTLS::processMsg function in common/rfb/CSecurityTLS.cxx in the vncviewer component in TigerVNC 1.1beta1 does not properly verify the server's X.509 certificate, which allows man-in-the-middle attackers to spoof a TLS VNC server via an arbitrary certificate. | |||||
| CVE-2025-26601 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| A use-after-free flaw was found in X.Org and Xwayland. When changing an alarm, the values of the change mask are evaluated one after the other, changing the trigger values as requested, and eventually, SyncInitTrigger() is called. If one of the changes triggers an error, the function will return early, not adding the new sync object, possibly causing a use-after-free when the alarm eventually triggers. | |||||
| CVE-2025-26600 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| A use-after-free flaw was found in X.Org and Xwayland. When a device is removed while still frozen, the events queued for that device remain while the device is freed. Replaying the events will cause a use-after-free. | |||||
| CVE-2025-26599 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later. | |||||
| CVE-2025-26598 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| An out-of-bounds write flaw was found in X.Org and Xwayland. The function GetBarrierDevice() searches for the pointer device based on its device ID and returns the matching value, or supposedly NULL, if no match was found. However, the code will return the last element of the list if no matching device ID is found, which can lead to out-of-bounds memory access. | |||||
| CVE-2025-26596 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| A heap overflow flaw was found in X.Org and Xwayland. The computation of the length in XkbSizeKeySyms() differs from what is written in XkbWriteKeySyms(), which may lead to a heap-based buffer overflow. | |||||
| CVE-2025-26595 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size. | |||||
| CVE-2025-26594 | 3 Redhat, Tigervnc, X.org | 4 Enterprise Linux, Tigervnc, X Server and 1 more | 2026-04-06 | N/A | 7.8 HIGH |
| A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free. | |||||
| CVE-2023-6377 | 4 Debian, Redhat, Tigervnc and 1 more | 6 Debian Linux, Enterprise Linux, Enterprise Linux Eus and 3 more | 2026-03-24 | N/A | 7.8 HIGH |
| A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where X11 forwarding is involved. | |||||