Início / CVEs
Base de CVEs
Vulnerabilidades publicadas, com severidade, exploração conhecida e fontes oficiais.
CVE-2026-11793
Média · 4.9
CWE-121 09/06/2026
389-ds-base: 389-ds-base: stack buffer overflow in checkprefix() algorithm id parsing
A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix() function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can crash the LDAP server by storing a crafted credential with an oversized algorithm ID. FORTIFY_SOURCE mitigates this to denial of service only.
CVE-2025-62858
Média · 6.5
CWE-121 09/06/2026
QTS, QuTS hero
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes.
We have already fixed the vulnerability in the following versions:
QTS 5.2.9.3410 build 20260214 and later
QuTS hero h5.2.9.3410 build 20260214 and later
QuTS hero h5.3.4.3500 build 20260520 and later
QuTS hero h6.0.0.3397 build 20260206 and later
CVE-2026-27671
Crítica · 9.8
CWE-121 08/06/2026
Memory Corruption vulnerability in Application Server ABAP of SAP NetWeaver and ABAP Platform
Due to improper RFC protocol validation in the SAP Kernel used by the Application Server ABAP of SAP NetWeaver and ABAP Platform, an unauthenticated attacker can send a crafted RFC request that exploits logical errors in memory management, leading to memory corruption. This could lead to a high impact on the confidentiality, integrity, and availability of the application.
CVE-2026-9669
Alta · 8.2
CWE-121 08/06/2026
bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow
bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer. This could crash the process when processing untrusted data.
CVE-2026-36786
Alta · 7.5
CWE-121 08/06/2026
Shenzhen Tenda Technology Co., Ltd Tenda FH451 V1.0.0.9 was discovered to contain a…
Shenzhen Tenda Technology Co., Ltd Tenda FH451 V1.0.0.9 was discovered to contain a stack overflow in the list1 parameter of the fromDhcpListClient function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
CVE-2026-36789
Alta · 7.5
CWE-121 08/06/2026
Shenzhen Tenda Technology Co., Ltd Tenda AC1206 v15.03.06.23 was discovered to contain…
Shenzhen Tenda Technology Co., Ltd Tenda AC1206 v15.03.06.23 was discovered to contain multiple stack overflows in the fromGstDhcpSetSer function via the username and password parameters. These vulnerabilities allow attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
CVE-2026-6240
Média · 6.8
CWE-121 05/06/2026
Authenticated Stack-based Buffer Overflow in ONVIF DeleteUsers Service on TP-Link Tapo C520WS
A stack-based buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF DeleteUsers service, due to insufficient boundary checks when handling multiple user deletion parameters. An authenticated attacker can send a crafted malicious request containing an excessive number of identifiers to overflow stack memory.
Successful exploitation may result in a service crash or deadlock, leading to DoS affecting device management and monitoring functionality.
CVE-2026-6239
Média · 6.8
CWE-121 05/06/2026
Authenticated Stack-based Buffer Overflow in ONVIF CreateUsers Service in TP-Link Tao C520WS
A stack‑based
buffer overflow vulnerability exists in Tapo C520WS v2 in the ONVIF CreateUsers service, where
the device fails to properly validate the number of XML user nodes during
request processing. An authenticated attacker can send a specially crafted
ONVIF request containing an excessive number of user entries to trigger memory
corruption.
Successful
exploitation may cause the ONVIF management service to terminate unexpectedly,
resulting in a denial‑of‑service (DoS) condition that disrupts device
configuration and management functions.
CVE-2026-36785
Alta · 7.5
CWE-121 05/06/2026
Shenzhen Tenda Technology Co., Ltd Tenda FH451 V1.0.0.9 was discovered to contain a…
Shenzhen Tenda Technology Co., Ltd Tenda FH451 V1.0.0.9 was discovered to contain a stack overflow in the page parameter of the fromDhcpListClient function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP request.
CVE-2026-50259
Alta · 7.8
CWE-121 05/06/2026
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb setmap request via mapwidths indexing
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. _XkbSetMapChecks() declares a fixed-size stack buffer mapWidths[256] indexed by key type index. The helper function CheckKeyTypes() writes to this buffer at a client-controlled offset, allowing a stack buffer overflow. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVE-2026-50258
Alta · 7.8
CWE-121 05/06/2026
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVE-2026-50256
Alta · 7.8
CWE-121 05/06/2026
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root.
CVE-2026-11024
Alta · 8.8
CWE-121 04/06/2026
Stack-based Buffer Overflow em Google Chrome
Stack buffer overflow in Skia in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to potentially exploit stack corruption via a crafted HTML page. (Chromium security severity: Medium)
CVE-2026-10898
Alta · 8.3
CWE-121 04/06/2026
Stack-based Buffer Overflow em Google Chrome
Stack buffer overflow in GPU in Google Chrome prior to 149.0.7827.53 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
CVE-2026-47318
Média · 6.1
CWE-121 04/06/2026
Stack-based Buffer Overflow em Samsung Open Source Rlottie
Stack-based buffer overflow vulnerability in Samsung Open Source rlottie allows Overflow Buffers.
This issue affects rlottie: before ce72b35a7ad0dded03051d3aa0ef75321c3bd035.
CVE-2026-35085
Alta · 8.8
CWE-121 03/06/2026
Stack buffer overflow in method gdv-serverconfig
A remote attacker with user privileges can exploit a stack buffer overflow in gdv-serverconfig to gain full system access as root.
CVE-2026-35084
Alta · 8.8
CWE-121 03/06/2026
Stack buffer overflow in method dali-devconfig
A remote attacker with user privileges can exploit a stack buffer overflow in dali-devconfig to gain full system access as root.
CVE-2026-35083
Alta · 8.8
CWE-121 03/06/2026
Stack buffer overflow in method bac-deviceobject
A remote attacker with user privileges can exploit a stack buffer overflow to gain full system access as root.
CVE-2026-50031
Alta · 7.5
CWE-121 03/06/2026
Stack-based Buffer Overflow em FreeIPMI
ipmi-oem in FreeIPMI before 1.6.18 has exploitable buffer overflows on response messages. The Intelligent Platform Management Interface (IPMI) specification defines a set of interfaces for platform management. It is implemented by a large number of hardware manufacturers to support system management. It is most commonly used for sensor reading (e.g., CPU temperatures through the ipmi-sensors command within FreeIPMI) and remote power control (the ipmipower command). The ipmi-oem client command implements a set of a IPMI OEM commands for specific hardware vendors. If a user has supported hardware, they may wish to use the ipmi-oem command to send a request to a server to retrieve specific information. Two subcommands "ipmi-oem dell get-active-directory-config" and "ipmi-oem fujitsu get-sel-entry-long-text" were found to have exploitable buffer overflows on response messages.
CVE-2026-49943
Média · 6.3
CWE-121 02/06/2026
Stack-based Buffer Overflow em NIC BIRD
CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP AS_PATH mask matching implementation in nest/a-path.c. The as_path_match() function uses a fixed-size stack array of 2048 + 1 pm_pos entries, while parse_path() expands AS_PATH segments from a received BGP UPDATE without enforcing a corresponding capacity limit. When RFC 8654 BGP Extended Messages are enabled and a BIRD filter evaluates an AS path mask expression such as "bgp_path ~ [= ... =]", an established BGP peer can send a long AS_PATH containing more than 2048 expanded ASNs. This causes parse_path()/as_path_match() to write beyond the fixed stack buffer, resulting in a crash of the daemon. NOTE: reportedly, the Supplier's position is that a fix is not being prioritized because all network operators should already be rejecting routes with unusually long attributes.
CVE-2026-1871
Média · 6.5
CWE-121 02/06/2026
Authenticated Stack-based Buffer Overflow in RTSP Authentication of Tapo C200
TP-Link Tapo C200 v5 contains a stack-based buffer overflow flaw in RTSP authentication handling due to improper validation of Authorization header field lengths, which can be triggered by a crafted authentication request.
Successful exploitation causes the affected RTSP core service process to crash and triggers an automatic system reboot, resulting in a denial of service (DoS) condition. This prevents legitimate users from accessing the camera’s live video stream or management interface until the service restarts.
CVE-2026-35716
Média · 6.3
CWE-121 02/06/2026
Stack-based Buffer Overflow em Vivotek Fd8136 Firmware
A stack-based buffer overflow in the motion_privacy.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows authenticated remote attackers to execute arbitrary code as root via an oversized n1 parameter in a POST request to the /cgi-bin/admin/setpm.cgi, /cgi-bin/admin/setmd.cgi, or /cgi-bin/admin/setmd_profile.cgi endpoint (all symlinks to the same binary). The parameter value is copied into a fixed-size 0xa4-byte stack buffer without bounds checking, overwriting the saved link register. The binary is compiled without stack canaries.
CVE-2026-30649
Alta · 7.3
CWE-121 02/06/2026
Stack-based Buffer Overflow em Vivotek Fd8136 Firmware
Buffer Overflow vulnerability in VIVOTEK INC FD8136-VVTK-0300a allows a remote attacker to execute arbitrary code via the set_getparam.cgi component
CVE-2026-35717
Média · 6.3
CWE-121 02/06/2026
Stack-based Buffer Overflow em Vivotek Fd8136 Firmware
A stack-based buffer overflow in the export_language.cgi binary in VIVOTEK FD8136 firmware FD8136-VVTK-0300a allows authenticated remote attackers to execute arbitrary code as root via a crafted POST request to the /cgi-bin/admin/export_language.cgi endpoint. The handler passes the attacker-controlled Content-Length value directly to fread() as the read size into a fixed-size 0x60-byte stack buffer, overwriting the saved link register. The binary is compiled without stack canaries.
CVE-2026-24085
Alta · 7.2
CWE-121 01/06/2026
Stack-based Buffer Overflow in Display
Memory Corruption when processing display command line information due to improper initialization of a variable.