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CVE-2026-75488

Cudy TR3000 before 2.5.42 Stack Buffer Overflow via CWMP Basic Authorization Builder

Cudy TR3000 before 2.5.42 contains a stack buffer overflow vulnerability in the CWMP client that allows a malicious ACS to corrupt stack memory via oversized credentials. Attackers controlling the ACS can send Username and Password values up to 256 bytes in TR-069 Download or Upload requests, overflowing 128-byte stack buffers and crashing the CWMP process.

CVSS 4.0 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-75492

Cudy TR3000 before 2.5.42 Stack Buffer Overflow via stun_client UDP Parser

Cudy TR3000 before 2.5.42 contains an unauthenticated stack buffer overflow vulnerability in the stun_client TR-111 UDP Connection Request parser that parses requests before verifying username or HMAC. Remote attackers can send a single crafted UDP datagram lacking a space in the request line, causing strncpy() to overflow a 10-byte stack buffer and crash stun_client for denial of service.

CVSS 4.0 · 8.7 High EPSS n/a KEV · Not listed
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CVE-2026-75493

Cudy TR3000 before 2.5.42 Stack Buffer Overflow via obuspa KeyPassphrase Getter

Cudy TR3000 before 2.5.42 contains a stack buffer overflow vulnerability in an obuspa getter for the TR-098 WLANConfiguration KeyPassphrase parameter, which copies the stored value with strcpy() into a 4,096-byte stack buffer without a length check. A malicious or compromised ACS can set a 5,000-byte passphrase via SetParameterValues, and a later read of the parameter overflows the buffer and crashes obuspa, causing denial of service.

CVSS 4.0 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-127099

Sssd: sssd: stack buffer overflow during rsa certificate-to-ssh key conversion

A flaw was found in SSSD's conversion of X.509 certificate RSA public keys to SSH keys. Missing size checks before copying RSA components into fixed-size stack buffers can cause a stack buffer overflow. An attacker able to supply a certificate with oversized RSA components that passes the configured certificate checks can cause denial of service and corrupt SSH responder memory.

CVSS 3.1 · 5.9 Medium EPSS n/a KEV · Not listed
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CVE-2026-47259

BACnet Stack: Stack-based buffer overflow in Notification Class RemoveListElement recipient-list decoding

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a RemoveListElement request targeting Notification-Class.recipient-list can trigger a stack-based out-of-bounds write in the current master branch when the request contains more than NC_MAX_RECIPIENTS valid BACnetDestination elements. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

CVSS 3.1 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-47711

BACnet Stack: Stack buffer overflow in Loop internal ReadProperty path via Life_Safety_Zone.accepted-modes on the default BACnet/IP server

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, the current master demo server can be crashed remotely over BACnet/IP by sending a valid Confirmed WriteProperty request that updates loop-1's controlled-variable-reference to point to life-safety-zone-1 / accepted-modes. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

CVSS 3.1 · 8.6 High EPSS n/a KEV · Not listed
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CVE-2026-45265

Atomic-Read-File RecordCount Stack-Based Out-of-Bounds Write in bacnet-stack

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, there is a stack-based out-of-bounds write / stack-buffer-overflow in bacnet-stack when the server processes a malicious Atomic-Read-File request in record access mode. The bug is triggered on the real server side. A crafted request can set an excessively large RecordCount, which is later used as the loop bound for writing record data into a stack-allocated BACNET_ATOMIC_READ_FILE_DATA data structure. However, the stack object only has space for one fileData element. When the loop reaches i = 1, the code computes &data->fileData[1], which is already out of bounds, and the resulting invalid pointer is passed down to memmove(), causing a stack-buffer-overflow. This issue has been patched in versions 1.4.4 and 1.5.1.

CVSS 3.1 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-46674

BACnet Stack: Out-of-Bounds Read in AtomicWriteFile Record Decoder via Unbounded returnedRecordCount

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4 and 1.5.1, an out-of-bounds read vulnerability exists in bacnet-stack's AtomicWriteFile record-access path. The bug is caused by a mismatch between an externally controlled returnedRecordCount field and the fixed-size internal fileData[] array used by BACNET_ATOMIC_WRITE_FILE_DATA. This issue has been patched in versions 1.4.4 and 1.5.1.

CVSS 3.1 · 7.5 High EPSS n/a KEV · Not listed
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CVE-2026-47258

BACnet Stack: Stack-based buffer overflow in Notification Class AddListElement recipient-list decoding

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a stack-based out-of-bounds write exists in the Notification Class object implementation when handling AddListElement for the recipient-list property. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

CVSS 3.1 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-47710

BACnet Stack: Loop reference to long Structured View description causes stack-buffer-overflow

BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to versions 1.4.4, 1.5.1, and 1.6.0, a stack-buffer-overflow can be triggered in the current master branch when a Loop object reads a referenced property through its default timer path and the referenced property is OBJECT_STRUCTURED_VIEW / PROP_DESCRIPTION containing a long attacker-controlled string. This issue has been patched in versions 1.4.4, 1.5.1, and 1.6.0.

CVSS 3.1 · 8.2 High EPSS n/a KEV · Not listed
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CVE-2026-126831

Cpio: cpio: stack-based buffer overflow in write_out_tar_header() with long usernames/groupnames

A flaw was found in cpio. A local user can cause a Denial of Service (DoS) by triggering a stack-based buffer overflow when creating archives in tar or ustar formats. When archiving files owned by users or groups with names exceeding 32 characters, cpio copies these names into fixed-size memory without verifying their length. This unbounded copy corrupts stack memory and causes the application to crash.

CVSS 3.1 · 5.5 Medium EPSS n/a KEV · Not listed
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CVE-2026-95948

Windows Graphics Kernel Elevation of Privilege Vulnerability

Stack-based buffer overflow in Windows Graphics Kernel allows an authorized attacker to elevate privileges locally.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-126223

Stack-Based Buffer Overflow in Fortinet FortiAnalyzer and FortiManager Allowing Unauthorized Code Execution via JSON-RPC

A stack-based buffer overflow vulnerability in Fortinet FortiAnalyzer 8.0.0 through 8.0.1, FortiAnalyzer 7.6.0 through 7.6.7, FortiAnalyzer 7.4.0 through 7.4.11, FortiAnalyzer Cloud 8.0.0 through 8.0.1, FortiAnalyzer Cloud 7.6.0 through 7.6.7, FortiAnalyzer Cloud 7.4.1 through 7.4.11, FortiManager 8.0.0 through 8.0.1, FortiManager 7.6.0 through 7.6.7, FortiManager 7.4.0 through 7.4.11, FortiManager Cloud 8.0.0 through 8.0.1, FortiManager Cloud 7.6.0 through 7.6.7, FortiManager Cloud 7.4.1 through 7.4.11 may allow an authenticated administrator to execute unauthorized code or commands or cause a denial of service via specially crafted JSON-RPC requests.

CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
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CVE-2026-121744

Ashlar-Vellum Cobalt XE File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

Ashlar-Vellum Cobalt XE File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of XE files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28172.

CVSS 3.0 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-126258

Unauthenticated Stack-based Buffer Overflow in FortiOS Proxy and ZTNA Sessions

A stack-based buffer overflow vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.7 may allow an unauthenticated attacker with wad port access to crash proxy or ZTNA sessions via crafted HTTP or HTTPS requests.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-20590

In display, there is a possible system crash due to a logic error. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11410704; Issue ID: MSV-9574.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
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CVE-2026-126239

Stack-Based Buffer Overflow in FortiAuthenticator Allows Crash of FSSO Subsystem

A stack-based buffer overflow vulnerability in Fortinet FortiAuthenticator 8.0.0 through 8.0.3, FortiAuthenticator 6.6.0 through 6.6.10 may allow an unauthenticated attacker to crash the FSSO subsystem via crafted http requests

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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