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Vulnerabilidades publicadas, com severidade, exploração conhecida e fontes oficiais.
CVE-2026-8247
Alta · 8.8
CWE-787 02/07/2026
WatchGuard Firebox admd Out of Bounds Write Vulnerability
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS may allow an unauthenticated attacker on the same local network segment to execute arbitrary code.
This vulnerability affects Fireware OS 11.0 up to and including 11.12.4_Update1, 12.0 up to and including 12.12 and 2025.1 up to and including 2026.2.
CVE-2026-13384
Alta · 7.2
CWE-787 02/07/2026
WatchGuard Firebox wgagent Out of Bounds Write Vulnerability
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
CVE-2026-13383
Alta · 7.2
CWE-787 02/07/2026
WatchGuard Firebox ikestubd Out of Bounds Write Vulnerability
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS ikestubd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
CVE-2026-13053
Alta · 7.2
CWE-787 02/07/2026
WatchGuard Firebox Authenticated Out of Bounds Write in Management CLI Command Handler
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS's CLI could allow an authenticated privileged user to execute arbitrary code via a specially crafted CLI command.
CVE-2026-13050
Alta · 7.2
CWE-787 02/07/2026
WatchGuard Firebox networkd Out of Bounds Write Vulnerability
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS networkd process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
CVE-2026-14400
Alta · 8.3
CWE-787 01/07/2026
Out-of-bounds Write em Google Chrome
Out of bounds write in ANGLE in Google Chrome prior to 150.0.7871.46 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)
CVE-2026-14397
Crítica · 9.6
CWE-787 01/07/2026
Out-of-bounds Write em Google Chrome
Out of bounds write in ANGLE in Google Chrome on Mac prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
CVE-2026-14395
Alta · 8.8
CWE-787 01/07/2026
Out-of-bounds Write em Google Chrome
Out of bounds write in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-14392
Crítica · 9.6
CWE-787 01/07/2026
Out-of-bounds Write em Google Chrome
Out of bounds write in Tint in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
CVE-2026-58592
Alta · 8.3
CWE-787 01/07/2026
Ladybird - Web-Reachable Code Execution via Dangling FunctionType Reference in WebAssembly ESM Integration
Ladybird before commit 2f9dc7e contains a dangling-reference memory-safety flaw in its WebAssembly ESM-integration module loader. When a JavaScript function is imported into a WebAssembly module via the ESM path, WebAssemblyModule.cpp passes a stack-local Wasm::FunctionType by reference to create_host_function, whose host callback captures and later reads that reference; once the ESM link-loop iteration ends the FunctionType is destroyed, leaving the callback with a dangling reference (the normal instantiate path uses a long-lived reference and is not affected). Stale result-type data lets the host callback return an empty result vector for a statically non-empty result, so the destination register retains an attacker-influenced value that is then consumed by the WASM-GC array.set handler, which bit-casts the reference low bits to an ArrayInstance pointer after only a null check, yielding an arbitrary write. A web page can chain this into code execution in the WebContent process. Verified reachable from HTML content without any instrumentation or source modification.
CVE-2025-23351
Crítica · 9.0
CWE-787 01/07/2026
Out-of-bounds Write em NVIDIA BlueField GA
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
CVE-2025-23350
Crítica · 9.0
CWE-787 01/07/2026
Out-of-bounds Write em NVIDIA BlueField GA
NVIDIA ConnectX and BlueField contain a vulnerability in the command interface where a local user with virtual function (VF) access may cause a write out of bounds by crafted input. A successful exploit of this vulnerability may lead to arbitrary code execution on the device.
CVE-2026-7840
Crítica · 9.8
CWE-787 01/07/2026
UltraVNC repeater HTTP server global buffer overflow via long URI (pre-auth RCE)
UltraVNC repeater through 1.8.2.2 contains a global buffer overflow in its embedded HTTP administration server. The functions wi_senderr() and wi_replyhdr() in repeater/webgui/webutils.c write the caller-supplied HTTP request URI into a fixed 1000-byte global buffer (hdrbuf) via unchecked sprintf calls. The HTTP receive buffer accepts URIs up to approximately 150 KB (WI_RXBUFSIZE = 153600), so an unauthenticated attacker who can reach the repeater HTTP port (default TCP 80) can overflow hdrbuf by at least 500 bytes with a single HTTP request containing a URI of 1500 bytes or longer, corrupting adjacent .bss-segment globals. The overflow occurs before any authentication check, making it reachable without credentials. A remote, unauthenticated attacker can achieve arbitrary code execution on the host running the repeater.
CVE-2026-7829
Alta · 7.2
CWE-787 01/07/2026
UltraVNC repeater authenticated out-of-bounds write in rule parser via oversized token
UltraVNC repeater through 1.8.2.2 contains a post-authentication out-of-bounds write in the allow/deny rule parser. In repeater/webgui/settings.c:225-272, after strncpy_s copies a rule token into temp1[rule1] (25-byte destination) or temp2/temp3 (16-byte destination), the code unconditionally writes a NUL terminator at temp1[rule1][len] = 0 without clamping len to the destination size. When an authenticated administrator saves a rule with a token length equal to or greater than the destination size, the NUL byte is written one or more bytes past the end of the stack-allocated array, corrupting adjacent stack data. An attacker who has obtained admin credentials (including via CVE-2026-7839 default password) can trigger this to gain code execution on the repeater host.
CVE-2026-20461
Média · 5.3
CWE-787 01/07/2026
Out-of-bounds Write em Mediatek MediaTek chipset
In Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01267281 / MOLY01318201; Issue ID: MSV-6486.
CVE-2026-20458
Alta · 7.5
CWE-787 01/07/2026
Out-of-bounds Write em Mediatek MediaTek chipset
In Modem, there is a possible memory corruption due to a missing bounds check. This could lead to remote escalation of privilege, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01402160; Issue ID: MSV-7298.
CVE-2026-14152
Crítica · 9.6
CWE-787 30/06/2026
Out-of-bounds Write em Google Chrome
Out of bounds read and write in ANGLE in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-14087
Alta · 8.8
CWE-787 30/06/2026
Out-of-bounds Write em Google Chrome
Heap buffer overflow in WebNN in Google Chrome on Windows prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Low)
CVE-2026-14241
Crítica · 9.8
CWE-787 30/06/2026
Falhas de segurança de memória no Mozilla Firefox com escrita fora dos limites (CWE-787)
Falhas de segurança de gestão de memória presentes no Firefox 152.0.3. Algumas dessas falhas apresentaram evidências de corrupção de memória e presumimos que, com esforço suficiente, algumas poderiam ter sido exploradas para executar código arbitrário. Esta vulnerabilidade foi corrigida no Firefox 152.0.4.
CVE-2026-43745
Média · 6.5
CWE-787 29/06/2026
Out-of-bounds Write em Apple Safari
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.
CVE-2026-9105
Média · 6.5
CWE-787 29/06/2026
Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process.
Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.
CVE-2026-10644
Baixa · 3.1
CWE-787 28/06/2026
Out-of-bounds write in Microchip SERCOM-G1 (PIC32CM-JH) async UART RX with 1-byte buffer
The Microchip SERCOM-G1 UART driver (drivers/serial/uart_mchp_sercom_g1.c), used by the PIC32CM-JH SoC family, contains an out-of-bounds write in its asynchronous (DMA) receive path. When uart_rx_enable() is invoked with a one-byte receive buffer (len == 1) and CONFIG_UART_MCHP_ASYNC is enabled, the RX-complete ISR starts a single-beat DMA transfer while a received byte is already pending in the SERCOM DATA register. On this SoC the peripheral-triggered DMA start sequencing then writes one byte past the end of the caller-supplied buffer (CWE-787).
The overflowed byte's value is the UART RX data supplied by the connected serial peer (adjacent attacker), while its size and location are fixed at one byte immediately after the buffer.
Exploitation requires the async UART config (not enabled by default on the in-tree PIC32CM-JH boards) and a consumer that enables RX with a one-byte buffer; impact is limited single-byte memory corruption adjacent to the RX buffer (possible crash / denial of service).
The defect shipped in v4.4.0. The fix reads the first byte with the CPU and, for one-byte buffers, performs no DMA at all; for larger buffers it sizes the DMA for the remaining len-1 bytes.
CVE-2026-58049
Alta · 8.6
CWE-787 27/06/2026
FFmpeg - Out-of-Bounds Write in RASC Decoder decode_dlta()
FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes at the row cursor before the NEXT_LINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A crafted media stream using the RASC FourCC, decoded by libavcodec, triggers a bitstream-controlled out-of-bounds heap write and adjacent out-of-bounds read, leading to memory corruption.
CVE-2026-10643
Alta · 7.8
CWE-787 27/06/2026
Out-of-bounds heap write in Zephyr `recvmsg()` ancillary-data path (`insert_pktinfo` undersizes the control-buffer capacity check)
Zephyr's IP socket recvmsg() implementation (subsys/net/lib/sockets/sockets_inet.c, insert_pktinfo()) validated the user-supplied ancillary (msg_control) buffer using only the payload length (msg->msg_controllen < pktinfo_len) before writing a full control message consisting of an aligned cmsg header plus the payload. Because the check omitted the cmsg header size, a control buffer whose length falls in the under-checked window (e.g. 16-27 bytes for IPv4 IP_PKTINFO on a 64-bit target, where a single element actually occupies 28 bytes) passes the guard yet causes a fixed-size out-of-bounds write of up to one cmsg header (~12 bytes) past the end of the buffer.
Under CONFIG_USERSPACE the recvmsg verifier allocates a kernel-heap copy of the control buffer sized to msg_controllen and runs the implementation against it, so the overflow corrupts kernel heap memory and is triggerable from an unprivileged userspace thread; in supervisor mode it corrupts the caller's buffer.
The path is reachable on a UDP/IP socket with IP_PKTINFO/IPV6_RECVPKTINFO (or hoplimit/timestamping) enabled when the application calls recvmsg() with an undersized control buffer and a datagram is received; part of the overwritten bytes (the destination IP in ipi_addr) is influenced by the received packet.
The fix makes the capacity check use NET_CMSG_SPACE(pktinfo_len) (aligned header + aligned data) and returns -ENOMEM when the buffer is too small. Affected: v3.6.0 through v4.4.0.
CVE-2026-46604
Alta · 7.5
CWE-787 26/06/2026
Panic decoding image with out-of-bounds strip offset in x/image/tiff in golang.org/x/image
The TIFF decoder can panic when decoding an invalid image with an out-of-bounds strip offset.