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CWE-120

4,201 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 (4,201)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Memcached
1Memcached
Jun 17, 2026
Mar 24, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
Memcached 1.6.x before 1.6.2 allows remote attackers to cause a denial of service (daemon crash) via a crafted binary protocol header to try_read_command_binary in memcached.c.
2Debian
Weechat
2Debian Linux
Weechat
Jun 17, 2026
Mar 23, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for...Show more
An issue was discovered in WeeChat before 2.7.1 (0.3.4 to 2.7 are affected). When a new IRC message 005 is received with longer nick prefixes, a buffer overflow and possibly a crash can happen when a new mode is set for a nick.Show less
1Wago
1Pfc200 Firmware
Jun 17, 2026
Mar 23, 2020
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. An attacker can send a specially crafted packet to trigger the parsing of this ca...Show more
An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC 200. An attacker can send a specially crafted packet to trigger the parsing of this cache file.At 0x1eb9c the extracted interface element name from the xml file is used as an argument to /etc/config-tools/config_interfaces interface=<contents of interface element> using sprintf(). The destination buffer sp+0x40 is overflowed with the call to sprintf() for any interface values that are greater than 512-len("/etc/config-tools/config_interfaces interface=") in length. Later, at 0x1ea08 strcpy() is used to copy the contents of the stack buffer that was overflowed sp+0x40 into sp+0x440. The buffer sp+0x440 is immediately adjacent to sp+0x40 on the stack. Therefore, there is no NULL termination on the buffer sp+0x40 since it overflowed into sp+0x440. The strcpy() will result in invalid memory access. An interface value of length 0x3c4 will cause the service to crash.Show less
1Cisco
1Sd Wan Firmware
Jun 17, 2026
Mar 19, 2020
N/A· v4
7.1 HIGH· v3
6.6 MEDIUM· v2
A vulnerability in Cisco SD-WAN Solution software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker coul...Show more
A vulnerability in Cisco SD-WAN Solution software could allow an authenticated, local attacker to cause a buffer overflow on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to gain access to information that they are not authorized to access and make changes to the system that they are not authorized to make.Show less
1Freebsd
1Freebsd
Jun 17, 2026
Mar 14, 2020
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the okhtmlfile and failhtmlfile parameters of several functionalities of the web application that w...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the okhtmlfile and failhtmlfile parameters of several functionalities of the web application that would allow an unauthenticated attacker to perform a Denial of Service attack, crashing the device, or potentially execute arbitrary code on the device.Show less
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the LPD service. This would allow an unauthenticated attacker to cause a Denial of Service (DoS) in...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the LPD service. This would allow an unauthenticated attacker to cause a Denial of Service (DoS) in the LPD service and potentially execute arbitrary code on the device.Show less
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the URI paths of the web application that would allow an unauthenticated attacker to perform a Deni...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the URI paths of the web application that would allow an unauthenticated attacker to perform a Denial of Service attack, crashing the device, or potentially execute arbitrary code on the device.Show less
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
8.8 HIGH· v3
9.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the arg4 and arg9 parameters of several functionalities of the web application that would allow an...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in the arg4 and arg9 parameters of several functionalities of the web application that would allow an authenticated attacker to perform a Denial of Service attack, crashing the device, or potentially execute arbitrary code on the device.Show less
1Xerox
1Phaser 3320 Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the Authentication Cookie of the web application that would allow an attacker to execute arbitrary code on...Show more
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the Authentication Cookie of the web application that would allow an attacker to execute arbitrary code on the device.Show less
1Xerox
1Phaser 3320 Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the Content-Type HTTP Header of the web application that would allow an attacker to execute arbitrary code...Show more
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the Content-Type HTTP Header of the web application that would allow an attacker to execute arbitrary code on the device.Show less
1Xerox
1Phaser 3320 Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the attributes parser of the IPP service. This would allow an unauthenticated attacker to cause a Denial of...Show more
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the attributes parser of the IPP service. This would allow an unauthenticated attacker to cause a Denial of Service (DoS) and potentially execute arbitrary code on the device.Show less
1Xerox
1Phaser 3320 Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the request parser of the IPP service. This would allow an unauthenticated attacker to cause a Denial of Se...Show more
Some Xerox printers (such as the Phaser 3320 V53.006.16.000) were affected by a buffer overflow vulnerability in the request parser of the IPP service. This would allow an unauthenticated attacker to cause a Denial of Service (DoS) and potentially execute arbitrary code on the device.Show less
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
8.8 HIGH· v3
9.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in multiple parameters of the Document Boxes functionality of the web application that would allow an...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by a buffer overflow vulnerability in multiple parameters of the Document Boxes functionality of the web application that would allow an authenticated attacker to perform a Denial of Service attack, crashing the device, or potentially execute arbitrary code on the device.Show less
1Kyocera
1Ecosys M5526cdw Firmware
Jun 17, 2026
Mar 13, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by multiple buffer overflow vulnerabilities in the IPP service. This would allow an unauthenticated attacker to cause a Denial of Service...Show more
Some Kyocera printers (such as the ECOSYS M5526cdw 2R7_2000.001.701) were affected by multiple buffer overflow vulnerabilities in the IPP service. This would allow an unauthenticated attacker to cause a Denial of Service (DoS), and potentially execute arbitrary code on the device.Show less
1Intel
70Compute Stick Stck1a32wfc Firmware
Compute Stick Stck1a8lfc FirmwareCompute Stick Stk1a32sc Firmware+67 more
Jun 17, 2026
Mar 12, 2020
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
Improper buffer restrictions in firmware for Intel(R) NUC may allow an authenticated user to potentially enable escalation of privilege via local access. The list of affected products is provided in intel-sa-00343: https...Show more
Improper buffer restrictions in firmware for Intel(R) NUC may allow an authenticated user to potentially enable escalation of privilege via local access. The list of affected products is provided in intel-sa-00343: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00343.htmlShow less
1Bitcoin
1Bitcoin Core
Nov 21, 2024
Mar 12, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
bitcoind and Bitcoin-Qt prior to 0.15.1 have a stack-based buffer overflow if an attacker-controlled SOCKS proxy server is used. This results from an integer signedness error when the proxy server responds with an acknow...Show more
bitcoind and Bitcoin-Qt prior to 0.15.1 have a stack-based buffer overflow if an attacker-controlled SOCKS proxy server is used. This results from an integer signedness error when the proxy server responds with an acknowledgement of an unexpected target domain name.Show less
1Intel
1Graphics Driver
Jun 17, 2026
Mar 12, 2020
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
Buffer overflow in Intel(R) Graphics Drivers before versions 15.40.44.5107, 15.45.30.5103, and 26.20.100.7158 may allow an authenticated user to potentially enable escalation of privilege and denial of service via local...Show more
Buffer overflow in Intel(R) Graphics Drivers before versions 15.40.44.5107, 15.45.30.5103, and 26.20.100.7158 may allow an authenticated user to potentially enable escalation of privilege and denial of service via local access.Show less
1Intel
1Graphics Driver
Jun 17, 2026
Mar 12, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Buffer overflow in Intel(R) Graphics Drivers before version 26.20.100.6912 may allow an authenticated user to potentially enable a denial of service via local access.
1Moxa
6Mb3170 Firmware
Mb3180 FirmwareMb3270 Firmware+3 more
Jun 17, 2026
Mar 11, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. A Buffer overflow in the built-in web server all...Show more
An issue was discovered on Moxa MGate MB3170 and MB3270 devices before 4.1, MB3280 and MB3480 devices before 3.1, MB3660 devices before 2.3, and MB3180 devices before 2.1. A Buffer overflow in the built-in web server allows remote attackers to initiate DoS, and probably to execute arbitrary code (issue 1 of 2).Show less