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CWE-120

4,439 CVEs • Abstraction: Base • Likelihood of Exploit: High

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

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CVEs (4,439)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Asrmicro
2Asr1803 Firmware
Asr1806 Firmware
Jun 17, 2026
Nov 30, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Security best practices violations, a string operation in Streamingmedia will write past the end of fixed-size destination buffer if the source buffer is too large.
1Zumtobel
1Netlink Ccd Firmware
Jul 9, 2026
Nov 29, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Zumtobel Netlink CCD Onboard v3.74 - Firmware v3.80 was discovered to contain a buffer overflow via the component NetlinkWeb::Information::SetDeviceIdentification.
1Zyxel
1Zld
Jun 17, 2026
Nov 28, 2023
N/A· v4
4.4 MEDIUM· v3
N/A· v2
A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37, could allo...Show more
A buffer overflow vulnerability in the Zyxel ATP series firmware version 5.37, USG FLEX series firmware version 5.37, USG FLEX 50(W) series firmware version 5.37, and USG20(W)-VPN series firmware version 5.37, could allow an authenticated local attacker with administrator privileges to cause denial-of-service (DoS) conditions by executing the CLI command with crafted strings on an affected device.Show less
1Zyxel
1Zld
Jun 17, 2026
Nov 28, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN se...Show more
A buffer overflow vulnerability in the Zyxel ATP series firmware versions 4.32 through 5.37, USG FLEX series firmware versions 4.50 through 5.37, USG FLEX 50(W) series firmware versions 4.16 through 5.37, USG20(W)-VPN series firmware versions 4.16 through 5.37, and VPN series firmware versions 4.30 through 5.37, could allow an authenticated local attacker to cause denial-of-service (DoS) conditions by executing the CLI command to dump system logs on an affected device.Show less
1Kimmov
1Frhed
Jun 17, 2026
Nov 27, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Buffer overflow vulnerability in Frhed hex editor, affecting version 1.6.0. This vulnerability could allow an attacker to execute arbitrary code via a long filename argument through the Structured Exception Handler (SEH)...Show more
Buffer overflow vulnerability in Frhed hex editor, affecting version 1.6.0. This vulnerability could allow an attacker to execute arbitrary code via a long filename argument through the Structured Exception Handler (SEH) registers.Show less
1Glewlwyd Sso Server Project
1Glewlwyd Sso Server
Jun 17, 2026
Nov 23, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
scheme/webauthn.c in Glewlwyd SSO server before 2.7.6 has a possible buffer overflow during FIDO2 credentials validation in webauthn registration.
1Hikvision
1Localservicecomponents
Jun 17, 2026
Nov 23, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
There is a buffer overflow vulnerability in a web browser plug-in could allow an attacker to exploit the vulnerability by sending crafted messages to computers installed with this plug-in, which could lead to arbitrary c...Show more
There is a buffer overflow vulnerability in a web browser plug-in could allow an attacker to exploit the vulnerability by sending crafted messages to computers installed with this plug-in, which could lead to arbitrary code execution or cause process exception of the plug-in.Show less
1Hikvision
40Ds 7104ni Q1(c) Firmware
Ds 7104ni Q1(d) FirmwareDs 7108ni Q1(c) Firmware+37 more
Jun 17, 2026
Nov 23, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted p...Show more
There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.Show less
1Struktur
1Libde265
Jun 17, 2026
Nov 22, 2023
N/A· v4
8.1 HIGH· v3
N/A· v2
Libde265 v1.0.12 was discovered to contain multiple buffer overflows via the num_tile_columns and num_tile_row parameters in the function pic_parameter_set::dump.
2Fedoraproject
Linux
2Fedora
Linux Kernel
Jun 17, 2026
Nov 21, 2023
N/A· v4
6.7 MEDIUM· v3
N/A· v2
A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the...Show more
A buffer overflow vulnerability was found in the NVM Express (NVMe) driver in the Linux kernel. Only privileged user could specify a small meta buffer and let the device perform larger Direct Memory Access (DMA) into the same buffer, overwriting unrelated kernel memory, causing random kernel crashes and memory corruption.Show less
1Zephyrproject
1Zephyr
Jun 17, 2026
Nov 21, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
An malicious BLE device can cause buffer overflow by sending malformed advertising packet BLE device using Zephyr OS, leading to DoS or potential RCE on the victim BLE device.
1Tenda
4Ac18 Firmware
Ac19 FirmwareAc6 Firmware+1 more
Jun 17, 2026
Nov 20, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Buffer Overflow vulnerability in Tenda Ac19 v.1.0, AC18, AC9 v.1.0, AC6 v.2.0 and v.1.0 allows a remote attacker to execute arbitrary code via the formSetCfm function in bin/httpd.
1Openatom
1Openharmony
Jun 17, 2026
Nov 20, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
in OpenHarmony v3.2.2 and prior versions allow a local attacker cause DOS through buffer overflow.
1Struktur
1Libde265
Jun 17, 2026
Nov 16, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Buffer Overflow vulnerability in strukturag libde265 v1.10.12 allows a local attacker to cause a denial of service via the slice_segment_header function in the slice.cc component.
1Free5gc
1Free5gc
Jun 17, 2026
Nov 15, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP messages whose Sequence Number is mutated to overflow bytes.
1Free5gc
1Free5gc
Jun 17, 2026
Nov 15, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Buffer Overflow vulnerability in free5gc 3.3.0 allows attackers to cause a denial of service via crafted PFCP message with malformed PFCP Heartbeat message whose Recovery Time Stamp IE length is mutated to zero.
2Arubanetworks
Hp
2Arubaos
Instantos
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
There is a buffer overflow vulnerability in the underlying AirWave client service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point m...Show more
There is a buffer overflow vulnerability in the underlying AirWave client service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system. Show less
2Arubanetworks
Hp
2Arubaos
Instantos
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
There are buffer overflow vulnerabilities in the underlying CLI service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management...Show more
There are buffer overflow vulnerabilities in the underlying CLI service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of these vulnerabilities result in the ability to execute arbitrary code as a privileged user on the underlying operating system. Show less
2Arubanetworks
Hp
2Arubaos
Instantos
Jun 17, 2026
Nov 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
There are buffer overflow vulnerabilities in the underlying CLI service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management...Show more
There are buffer overflow vulnerabilities in the underlying CLI service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of these vulnerabilities result in the ability to execute arbitrary code as a privileged user on the underlying operating system. Show less
1Zoom
5Meetings
RoomsVideo Software Development Kit+2 more
Jun 17, 2026
Nov 14, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Buffer overflow in some Zoom clients may allow an unauthenticated user to conduct a denial of service via network access.