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CWE-120

4,202 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 (4,202)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Valvesoftware
1Steam Client
Jun 17, 2026
Apr 10, 2021
N/A· v4
9.0 CRITICAL· v3
6.0 MEDIUM· v2
Valve Steam before 2021-04-17, when a Source engine game is installed, allows remote authenticated users to execute arbitrary code because of a buffer overflow that occurs for a Steam invite after one click.
1Skyworthdigital
1Rn510 Firmware
Jun 17, 2026
Apr 9, 2021
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
Skyworth Digital Technology RN510 V.3.1.0.4 RN510 V.3.1.0.4 contains a buffer overflow vulnerability in /cgi-bin/app-staticIP.asp. An authenticated attacker can send a specially crafted request to endpoint which can lead...Show more
Skyworth Digital Technology RN510 V.3.1.0.4 RN510 V.3.1.0.4 contains a buffer overflow vulnerability in /cgi-bin/app-staticIP.asp. An authenticated attacker can send a specially crafted request to endpoint which can lead to a denial of service (DoS) or possible code execution on the device.Show less
2Clamav
Debian
2Clamav
Debian Linux
Jun 17, 2026
Apr 8, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected...Show more
A vulnerability in the email parsing module in Clam AntiVirus (ClamAV) Software version 0.103.1 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper variable initialization that may result in an NULL pointer read. An attacker could exploit this vulnerability by sending a crafted email to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process crash, resulting in a denial of service condition.Show less
1Relic Project
1Relic
Jun 17, 2026
Apr 7, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
In RELIC before 2021-04-03, there is a buffer overflow in PKCS#1 v1.5 signature verification because garbage bytes can be present.
1Ffmpeg
1Ffmpeg
Jun 17, 2026
Apr 7, 2021
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
FFmpeg <=4.3 contains a buffer overflow vulnerability in libavcodec through a crafted file that may lead to remote code execution.
2Fedoraproject
Gnu
2Chess
Fedora
Jun 17, 2026
Apr 7, 2021
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay...Show more
GNU Chess 6.2.7 allows attackers to execute arbitrary code via crafted PGN (Portable Game Notation) data. This is related to a buffer overflow in the use of a .tmp.epd temporary file in the cmd_pgnload and cmd_pgnreplay functions in frontend/cmd.cc.Show less
1Serenityos
1Serenityos
Jun 17, 2026
Apr 6, 2021
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
SerenityOS 2021-03-27 contains a buffer overflow vulnerability in the EndOfCentralDirectory::read() function.
1Serenityos
1Serenityos
Jun 17, 2026
Apr 6, 2021
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
SerenityOS fixed as of c9f25bca048443e317f1994ba9b106f2386688c3 contains a buffer overflow vulnerability in LibTextCode through opening a crafted file.
1Riot Os
1Riot
Jun 17, 2026
Apr 6, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
RIOT-OS 2021.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c through the _parse_options() function.
1Riot Os
1Riot
Jun 17, 2026
Apr 6, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
RIOT-OS 2021.01 contains a buffer overflow vulnerability in sys/net/gnrc/routing/rpl/gnrc_rpl_validation.c through the gnrc_rpl_validation_options() function.
1Riot Os
1Riot
Jun 17, 2026
Apr 6, 2021
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
RIOT-OS 2020.01 contains a buffer overflow vulnerability in /sys/net/gnrc/routing/rpl/gnrc_rpl_control_messages.c.
1Serenityos
1Serenityos
Jun 17, 2026
Apr 6, 2021
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h Crypto::der_decode_sequence() function....Show more
SerenityOS Unspecified is affected by: Buffer Overflow. The impact is: obtain sensitive information (context-dependent). The component is: /Userland/Libraries/LibCrypto/ASN1/DER.h Crypto::der_decode_sequence() function. The attack vector is: Parsing RSA Key ASN.1.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The Service configuration-2 function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, re...Show more
The Service configuration-2 function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The Service configuration-1 function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, re...Show more
The Service configuration-1 function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The CD media configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, rem...Show more
The CD media configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The specific function in ASUS BMC’s firmware Web management page (Modify user’s information function) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the pri...Show more
The specific function in ASUS BMC’s firmware Web management page (Modify user’s information function) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The Firmware protocol configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permis...Show more
The Firmware protocol configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The Active Directory configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permiss...Show more
The Active Directory configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The specific function in ASUS BMC’s firmware Web management page (Generate SSL certificate function) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the priv...Show more
The specific function in ASUS BMC’s firmware Web management page (Generate SSL certificate function) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less
1Asus
44Asmb9 Ikvm Firmware
E700 G4 FirmwareEsc4000 Dhd G4 Firmware+41 more
Jun 17, 2026
Apr 6, 2021
N/A· v4
4.9 MEDIUM· v3
4.0 MEDIUM· v2
The Radius configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remot...Show more
The Radius configuration function in ASUS BMC’s firmware Web management page does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.Show less