CVE-2026-5405

Heap-based Buffer Overflow in Wireshark

RDP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2025-5043

3DM File Parsing Heap-Based Overflow Vulnerability

A maliciously crafted 3DM file, when linked or imported into certain Autodesk products, can force a Heap-Based Overflow vulnerability. A malicious actor can leverage this vulnerability to cause a crash, read sensitive data, or execute arbitrary code in the context of the current process.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Autodesk

Products

3ds Max Advance Steel Autocad and 14 more

CVE-2026-42483

Heap-based Buffer Overflow in Hashcat Kerberos Hash Parser

A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Hashcat

Products

Hashcat

CVE-2026-5403

Heap-based Buffer Overflow in Wireshark

SBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-6529

Heap-based Buffer Overflow in Wireshark

iLBC audio codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-6530

Heap-based Buffer Overflow in Wireshark

DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-5402

Heap-based Buffer Overflow in Wireshark

TLS protocol dissector heap overflow in Wireshark 4.6.0 to 4.6.4 allows denial of service and possible code execution

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-7378

Heap-based Buffer Overflow in Wireshark

Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-5653

Heap-based Buffer Overflow in Wireshark

DCP-ETSI protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Wireshark

Products

Wireshark

CVE-2026-35547

Heap overflow in libnv

When processing the header of an incoming message, libnv failed to properly validate the message size. The lack of validation allows a malicious program to write outside the bounds of a heap allocation. This can trigger a crash or system panic, and it may be possible for an unprivileged user to exploit the bug to elevate their privileges.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed

Vendors

Freebsd

Products

Freebsd

CVE-2026-42512

Remotely triggerable out-of-bounds heap write in dhclient

As dhclient is building an environment to pass to dhclient-script, it may need to resize the array of string pointers. The code which expands the array incorrectly calculates its new size when requesting memory, resulting in a heap buffer overrun. A specially crafted packet can cause dhclient to overrun its buffer of environment entries. This can result in a crash, but it may be possible to leverage this bug to achieve remote code execution.

CVSS 3.1 · 8.1 High EPSS 1.4% KEV · Not listed

Vendors

Freebsd

Products

Freebsd

CVE-2026-22828

Heap Based Buffer Overflow in Fortinet FortiAnalyzer Cloud and FortiManager Cloud Allowing Remote Code Execution

A heap-based buffer overflow vulnerability in Fortinet FortiAnalyzer Cloud 7.6.2 through 7.6.4, FortiManager Cloud 7.6.2 through 7.6.4 may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests. Successful exploitation would require a large amount of effort in preparation because of ASLR and network segmentation

CVSS 3.1 · 7.3 High EPSS < 1% KEV · Not listed

Vendors

Fortinet

Products

Fortianalyzer Cloud Fortianalyzercloud Fortimanager Cloud and 1 more

CVE-2026-5474

NASA cFS CCSDS Packet Header to_lab_passthru_encode.c CFE_MSG_GetSize heap-based overflow

A vulnerability was found in NASA cFS up to 7.0.0. This affects the function CFE_MSG_GetSize of the file apps/to_lab/fsw/src/to_lab_passthru_encode.c of the component CCSDS Packet Header Handler. Performing a manipulation results in heap-based buffer overflow. The attacker must have access to the local network to execute the attack. The project was informed of the problem early through an issue report but has not responded yet.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Vendors

Nasa

Products

Cfs Core Flight System

CVE-2026-7339

chromium-browser: Heap buffer overflow in WebRTC

Heap buffer overflow in WebRTC in Google Chrome prior to 147.0.7727.138 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Apple Google Linux and 1 more

Products

Macos Chrome Linux Kernel and 1 more

CVE-2026-33298

llama.cpp has a Heap Buffer Overflow via Integer Overflow in GGUF Tensor Parsing

llama.cpp is an inference of several LLM models in C/C++. Prior to b7824, an integer overflow vulnerability in the `ggml_nbytes` function allows an attacker to bypass memory validation by crafting a GGUF file with specific tensor dimensions. This causes `ggml_nbytes` to return a significantly smaller size than required (e.g., 4MB instead of Exabytes), leading to a heap-based buffer overflow when the application subsequently processes the tensor. This vulnerability allows potential Remote Code Execution (RCE) via memory corruption. b7824 contains a fix.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Ggml

Products

Llama.cpp

CVE-2026-7353

chromium-browser: Heap buffer overflow in Skia

Heap buffer overflow in Skia in Google Chrome prior to 147.0.7727.138 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Apple Google Linux and 1 more

Products

Macos Chrome Linux Kernel and 1 more

CVE-2026-2646

Heap buffer overflow in session parsing with wolfSSL_d2i_SSL_SESSION() function

A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.

CVSS 4.0 · 5 Medium EPSS < 1% KEV · Not listed

Vendors

Wolfssl

Products

Wolfssl

CVE-2026-3548

Buffer overflow in CRL number parsing in wolfSSL

Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs, either of these out of bound writes could be triggered. Note this only affects builds that specifically enable CRL support, and the user would need to load a CRL from an untrusted source.

CVSS 4.0 · 7.2 High EPSS < 1% KEV · Not listed

Vendors

Wolfssl

Products

Wolfssl

CVE-2026-5447

Heap buffer overflow in CertFromX509() via AuthorityKeyIdentifier

Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.

CVSS 4.0 · 6.3 Medium EPSS < 1% KEV · Not listed

Vendors

Wolfssl

Products

Wolfssl

CVE-2026-5264

DTLS 1.3 ACK heap buffer overflow

Heap buffer overflow in DTLS 1.3 ACK message processing. A remote attacker can send a crafted DTLS 1.3 ACK message that triggers a heap buffer overflow.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed

Vendors

Wolfssl

Products

Wolfssl