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CVE-2026-104064

Scribus before 1.6.7 and 1.7.x before 1.7.4 Heap Overflow via TIFF Tile Buffer Handling

Scribus before 1.6.7 and 1.7.x before 1.7.4 contains an integer overflow vulnerability in the scimgdataloader_tiff TIFF loader that allows attackers to trigger a heap overflow via crafted tile dimensions. Attackers can supply a tiled TIFF with large tile width, height and sample values for a user to import, corrupting heap memory to crash Scribus or execute code.

CVSS 4.0 · 8.5 High EPSS < 1% KEV · Not listed
Vendors
Scribus
Products
Scribus
CVE-2026-59691

Gstreamer1-plugins-bad-free: gstreamer: rfbsrc/librfb hextile heap out-of-bounds write with 16bpp framebuffer

A heap buffer overflow vulnerability was found in GStreamer's rfbsrc plugin. When a client connects to a malicious RFB/VNC server that advertises a 16bpp framebuffer and sends Hextile-encoded updates, the Hextile background fill path writes 32-bit pixel values into a buffer allocated for 16-bit pixels. This type mismatch causes an out-of-bounds heap write that can lead to denial of service (process crash) and potential memory corruption.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Gstreamer Redhat
Products
Gstreamer Enterprise Linux Enterprise Linux Eus and 6 more
CVE-2026-59091

Gimp: gimp: multiple vulnerabilities in file format plugins via crafted image file

A flaw was found in GIMP's file format plugins, including those for PSD and PAA files. A remote attacker could exploit these vulnerabilities by tricking a user into opening a specially crafted image file. This could lead to unexpected application behavior or other potential security impacts without requiring further user interaction.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed
Vendors
Gimp Redhat
Products
Gimp Enterprise Linux Rhel Els
CVE-2026-59087

Gimp: heap buffer overflow in `file-seattle-filmworks` load — `fread` writes attacker-controlled length into undersized allocation

A flaw was found in the GIMP image manipulation program, specifically within its Seattle Filmworks file loader. A remote attacker could exploit this vulnerability by tricking a user into opening a specially crafted Seattle Filmworks file. This could lead to a heap overflow, allowing the attacker to write several kilobytes of controlled data beyond the intended memory buffer. Such an overflow can result in memory corruption, potentially leading to arbitrary code execution or a denial of service.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Gimp Redhat
Products
Gimp Enterprise Linux Rhel Els
CVE-2026-56209

Libaom: libaom: arbitrary address write via svc layer context oob and cyclic refresh map pointer hijack

An arbitrary address write vulnerability was found in libaom, the reference AV1 codec implementation. A missing bounds check in the SVC (Scalable Video Coding) layer ID control function allows an attacker to inject an arbitrary pointer into the cyclic refresh map field via crafted image pixel values. The encoder then writes approximately 1,200 bytes at the attacker-controlled address. This is fully deterministic and does not require a separate information leak. An attacker who can supply frames to a network-facing libaom encoder with SVC enabled could exploit this for denial of service or potential code execution.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
Vendors
Aomedia Redhat
Products
Libaom Ai Inference Server Enterprise Linux and 4 more
CVE-2026-50264

Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: out-of-bounds heap write in dri2 drigetbuffers/drigetbufferswithformat

An out-of-bounds write flaw was found in the X.Org X server and Xwayland in DRIGetBuffers/DRIGetBuffersWithFormat. A client that requests multiple DRI2BufferBackLeft attachments and one DRI2BufferFrontLeft can trigger an out-of-bounds heap write. This may be used to crash the server, or for privilege escalation if the X server runs as root.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat X.org
Products
Enterprise Linux Enterprise Linux Eus Rhel Aus and 8 more
CVE-2026-4802

Cockpit: cockpit: arbitrary command execution via crafted links in system logs ui

A flaw was found in Cockpit. This vulnerability allows a remote attacker to achieve arbitrary command execution on the host by exploiting unsanitized user-controlled parameters within crafted links in the system logs user interface (UI). An attacker can inject shell metacharacters and command substitutions into these parameters, leading to the execution of arbitrary shell commands on the affected system. This could result in a complete system compromise.

CVSS 3.1 · 8 High EPSS 1.0% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Enterprise Linux Eus Rhel Aus and 4 more
CVE-2026-4631

Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection

Cockpit's remote login feature passes user-supplied hostnames and usernames from the web interface to the SSH client without validation or sanitization. An attacker with network access to the Cockpit web service can craft a single HTTP request to the login endpoint that injects malicious SSH options or shell commands, achieving code execution on the Cockpit host without valid credentials. The injection occurs during the authentication flow before any credential verification takes place, meaning no login is required to exploit the vulnerability.

CVSS 3.1 · 9.8 Critical EPSS 15.5% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Enterprise Linux Eus Rhel Els and 1 more
CVE-2026-4480

Samba: samba: remote code execution in printing subsystem via unescaped job description

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.

CVSS 3.1 · 9 Critical EPSS 28.7% KEV · Not listed
Vendors
Redhat Samba
Products
Enterprise Linux Enterprise Linux Eus Openshift and 8 more
CVE-2026-4408

Samba: remote code execution in samr

A flaw was found in Samba. A remote attacker can exploit a misconfiguration in Samba file servers and classic domain controllers that use the "check password script" feature. If this script is configured with the %u substitution character, the client-controlled username is passed without proper escaping of shell meta-characters. This vulnerability allows an attacker to achieve remote command execution on the affected system. This issue primarily affects non-standard configurations where the "check password script" is used with %u and the samba-dcerpcd service is started as a system service.

CVSS 3.1 · 9 Critical EPSS 46.9% KEV · Not listed
Vendors
Redhat Samba
Products
Enterprise Linux Enterprise Linux Eus Openshift and 8 more
CVE-2026-19843

389-ds-base: 389-ds-base: command injection via unescaped ldap dn in cockpit 389 console ldap editor

A flaw was found in 389-ds-base. The Cockpit 389 Console's LDAP editor constructs an ldapsearch command by embedding an LDAP entry's distinguished name (DN) into a shell command string without proper escaping. An LDAP user with delegated privileges to create or rename directory entries could craft a malicious DN containing shell metacharacters. When a Cockpit administrator subsequently views the entry in the 389 Console, the embedded shell command executes with root privileges on the directory server host.

CVSS 3.1 · 8.4 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Directory Server Directory Server E2s Directory Server E4s and 4 more
CVE-2026-16524

Pcp: pcp linux_sockets pmda: arbitrary command execution via command injection

A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Enterprise Linux Eus Openshift and 7 more
CVE-2026-16445

Dracut: dracut: root code execution via dhcp options command injection in networkmanager initrd module

A flaw was found in dracut. A remote attacker on the adjacent network can exploit this vulnerability by providing specially crafted DHCP options, such as a malicious root-path, next-server, or bootfile name, to a system using dracut's NetworkManager-based initrd network module. These options are improperly handled and written into a temporary shell script without proper escaping, leading to command injection. This allows the attacker to achieve root code execution within the initramfs during system boot.

CVSS 3.1 · 7.5 High EPSS 3.2% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Hummingbird Openshift and 5 more
CVE-2026-101258

Ghostscript: ghostscript: -dsafer sandbox bypass via type 5 shading oob write and procedure-stream use-after-free

A flaw was found in Ghostscript. When Ghostscript renders a crafted PostScript or EPS document, it can bypass the -dSAFER sandbox and execute arbitrary shell commands in the context of the Ghostscript process. The issue chains memory corruption in document parsing with disabling of internal path access controls at runtime. An attacker can deliver the document directly or through formats that delegate rendering to Ghostscript (for example EPS import or print conversion workflows). Successful exploitation can compromise confidentiality, integrity, and availability of data accessible to the process running Ghostscript.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Ghostscript Redhat
Products
Ghostscript Enterprise Linux Rhel Els
CVE-2026-105958

Spice-server: spice: heap oob read/write via unchecked migration data offsets

A flaw was found in spice-server. Multiple migration data handlers use client-supplied offsets from SPICE_MSGC_MIGRATE_DATA messages without bounds validation, allowing a malicious authenticated SPICE client during VM live migration to read arbitrary heap memory or trigger heap corruption via out-of-bounds read and write operations on the message buffer.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Red Hat Redhat
Products
Enterprise Linux Enterprise Linux Rhel Els
CVE-2025-26598

Xorg: xwayland: out-of-bounds write in createpointerbarrierclient()

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat Tigervnc X.org
Products
Enterprise Linux Rhel Aus Rhel E4s and 6 more
CVE-2025-26596

Xorg: xwayland: heap overflow in xkbwritekeysyms()

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat Tigervnc X.org
Products
Enterprise Linux Rhel Aus Rhel E4s and 6 more
CVE-2025-26595

Xorg: xwayland: buffer overflow in xkbvmodmasktext()

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Redhat Tigervnc X.org
Products
Enterprise Linux Rhel Aus Rhel E4s and 6 more
CVE-2025-10230

Samba: command injection in wins server hook script

A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active Directory Domain Controller’s wins hook, allowing an unauthenticated network attacker to achieve remote command execution as the Samba process.

CVSS 3.1 · 10 Critical EPSS 39.8% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Els
CVE-2025-0624

Grub2: net: out-of-bounds write in grub_net_search_config_file()

A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.

CVSS 3.1 · 7.6 High EPSS 1.4% KEV · Not listed
Vendors
Redhat
Products
Enterprise Linux Openshift Rhel Aus and 4 more