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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
1Huawei
1Mate 20 Firmware
Jun 17, 2026
Oct 19, 2020
N/A· v4
8.0 HIGH· v3
5.4 MEDIUM· v2
HUAWEI Mate 20 versions earlier than 10.0.0.188(C00E74R3P8) have a buffer overflow vulnerability in the Bluetooth module. Due to insufficient input validation, an unauthenticated attacker may craft Bluetooth messages aft...Show more
HUAWEI Mate 20 versions earlier than 10.0.0.188(C00E74R3P8) have a buffer overflow vulnerability in the Bluetooth module. Due to insufficient input validation, an unauthenticated attacker may craft Bluetooth messages after successful paring, causing buffer overflow. Successful exploit may cause code execution.Show less
1Apple
5Ipados
Iphone OsMac Os X+2 more
Jun 17, 2026
Oct 16, 2020
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. Processing a maliciously crafted USD file may lead...Show more
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8. Processing a maliciously crafted USD file may lead to unexpected application termination or arbitrary code execution.Show less
1Rockwellautomation
1Flex I/o 1794 Aent/b Firmware
Jun 17, 2026
Oct 14, 2020
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with...Show more
An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability If the ANSI Extended Symbol Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.Show less
1Rockwellautomation
1Flex I/o 1794 Aent/b Firmware
Jun 17, 2026
Oct 14, 2020
N/A· v4
7.5 HIGH· v3
7.8 HIGH· v2
An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with...Show more
An exploitable denial of service vulnerability exists in the ENIP Request Path Data Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.If the Simple Segment Sub-Type is supplied, the device treats the byte following as the Data Size in words. When this value represents a size greater than what remains in the packet data, the device enters a fault state where communication with the device is lost and a physical power cycle is required.Show less
1Rockwellautomation
1Allen Bradley Flex Io 1794 Aent/b Firmware
Jun 17, 2026
Oct 14, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
An exploitable denial of service vulnerability exists in the ENIP Request Path Port Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with...Show more
An exploitable denial of service vulnerability exists in the ENIP Request Path Port Segment functionality of Allen-Bradley Flex IO 1794-AENT/B. A specially crafted network request can cause a loss of communications with the device resulting in denial-of-service. An attacker can send a malicious packet to trigger this vulnerability.Show less
1Huawei
1Taurus An00b Firmware
Jun 17, 2026
Oct 12, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module does not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific re...Show more
Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module does not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific request. This could compromise normal service of the affected device.Show less
1Huawei
1Taurus An00b Firmware
Jun 17, 2026
Oct 12, 2020
N/A· v4
6.5 MEDIUM· v3
3.3 LOW· v2
Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module does not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific re...Show more
Taurus-AN00B versions earlier than 10.1.0.156(C00E155R7P2) have a buffer overflow vulnerability. A function in a module does not verify inputs sufficiently. Attackers can exploit this vulnerability by sending specific request. This could compromise normal service of the affected device.Show less
1Sonicwall
2Sonicos
Sonicosv
Jun 17, 2026
Oct 12, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A buffer overflow vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to firewall crash. This vulnerability affected SonicOS Gen 5 v...Show more
A buffer overflow vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to firewall crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.Show less
1Sonicwall
2Sonicos
Sonicosv
Jun 17, 2026
Oct 12, 2020
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
A buffer overflow vulnerability in SonicOS allows an authenticated attacker to cause Denial of Service (DoS) in the SSL-VPN and virtual assist portal, which leads to a firewall crash. This vulnerability affected SonicOS...Show more
A buffer overflow vulnerability in SonicOS allows an authenticated attacker to cause Denial of Service (DoS) in the SSL-VPN and virtual assist portal, which leads to a firewall crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.Show less
1Sonicwall
2Sonicos
Sonicosv
Jun 17, 2026
Oct 12, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected Soni...Show more
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.Show less
1Sonicwall
2Sonicos
Sonicosv
Jun 17, 2026
Oct 12, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
A vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service due to buffer overflow, which leads to a firewall crash. This vulnerability affected SonicOS Gen 6 version 6.5.1.12, 6.0.5.3,...Show more
A vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service due to buffer overflow, which leads to a firewall crash. This vulnerability affected SonicOS Gen 6 version 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.Show less
5Canonical
DebianOpensuse+2 more
10Debian Linux
Enterprise LinuxEnterprise Linux Aus+7 more
Jun 17, 2026
Oct 7, 2020
N/A· v4
6.6 MEDIUM· v3
6.5 MEDIUM· v2
Multiple buffer overflow vulnerabilities were found in the QUIC image decoding process of the SPICE remote display system, before spice-0.14.2-1. Both the SPICE client (spice-gtk) and server are affected by these flaws....Show more
Multiple buffer overflow vulnerabilities were found in the QUIC image decoding process of the SPICE remote display system, before spice-0.14.2-1. Both the SPICE client (spice-gtk) and server are affected by these flaws. These flaws allow a malicious client or server to send specially crafted messages that, when processed by the QUIC image compression algorithm, result in a process crash or potential code execution.Show less
1Intel
1Bios
Jun 17, 2026
Oct 5, 2020
N/A· v4
8.0 HIGH· v3
5.2 MEDIUM· v2
Buffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable elevation of privilege o...Show more
Buffer overflow in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable elevation of privilege or denial of service via adjacent access.Show less
1Wavlink
1Wn530h4 Firmware
Jun 17, 2026
Oct 2, 2020
N/A· v4
9.8 CRITICAL· v3
10.0 HIGH· v2
A remote buffer overflow vulnerability in the /cgi-bin/makeRequest.cgi endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allows an attacker to execute arbitrary machine instructions as root without authentication.
3Canonical
DpdkOpensuse
3Data Plane Development Kit
LeapUbuntu Linux
Jun 17, 2026
Sep 30, 2020
N/A· v4
8.8 HIGH· v3
7.2 HIGH· v2
A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A flawed bounds checking in the copy_data function leads to a buffer overflow allowing an attacker in a virtual machine to write arbitrary data to...Show more
A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A flawed bounds checking in the copy_data function leads to a buffer overflow allowing an attacker in a virtual machine to write arbitrary data to any address in the vhost_crypto application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.Show less
3Canonical
DpdkOpensuse
3Data Plane Development Kit
LeapUbuntu Linux
Jun 17, 2026
Sep 30, 2020
N/A· v4
7.8 HIGH· v3
6.9 MEDIUM· v2
A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A lack of bounds checking when copying iv_data from the VM guest memory into host memory can lead to a large buffer overflow. The highest threat fr...Show more
A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A lack of bounds checking when copying iv_data from the VM guest memory into host memory can lead to a large buffer overflow. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.Show less
4Debian
FedoraprojectLibproxy Project+1 more
4Debian Linux
FedoraLeap+1 more
Jun 17, 2026
Sep 30, 2020
N/A· v4
9.8 CRITICAL· v3
6.8 MEDIUM· v2
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
3Fedoraproject
NodejsOpensuse
3Fedora
LeapNode.js
Jun 17, 2026
Sep 18, 2020
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
The implementation of realpath in libuv < 10.22.1, < 12.18.4, and < 14.9.0 used within Node.js incorrectly determined the buffer size which can result in a buffer overflow if the resolved path is longer than 256 bytes.
1Cesanta
1Mongoose
Jun 17, 2026
Sep 18, 2020
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not...Show more
A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice.Show less
1Libraw
1Libraw
Jun 17, 2026
Sep 16, 2020
N/A· v4
7.8 HIGH· v3
5.1 MEDIUM· v2
A buffer overflow vulnerability in LibRaw version < 20.0 LibRaw::GetNormalizedModel in src/metadata/normalize_model.cpp may lead to context-dependent arbitrary code execution.