CWE-120
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Description
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.
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-10 · CAPEC-100 · CAPEC-14 · CAPEC-24 · CAPEC-42 · CAPEC-44 · CAPEC-45 · CAPEC-46 · CAPEC-47 · CAPEC-67 · CAPEC-8 · CAPEC-9 · CAPEC-92
CVEs mapped to this weakness (4,372)
page 83 of 219| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2025-11698 | Cri | 0.56 | — | 0.00 | Jul 14, 2026 | A denial-of-service issue exists in 5380/5480/5580 controllers boot firmware lower than version 1.072. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to enter a major non-recoverable fault… | ||
| CVE-2025-12012 | Cri | 0.56 | — | 0.00 | Jul 14, 2026 | A denial-of-service issue exists in 5380/5480/5580 controllers. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to enter a major non-recoverable fault (MNRF). | ||
| CVE-2025-12011 | Cri | 0.56 | — | 0.00 | Jul 14, 2026 | A denial-of-service issue exists in 5370/5570 controllers. This vulnerability could potentially allow a remote user to load an invalid project, causing the device to enter a major non-recoverable fault (MNRF). | ||
| CVE-2026-4690 | Hig | 0.56 | 8.6 | 0.01 | Mar 24, 2026 | Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | ||
| CVE-2026-4687 | Hig | 0.56 | 8.6 | 0.01 | Mar 24, 2026 | Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | ||
| CVE-2025-20222 | Hig | 0.56 | 8.6 | 0.01 | Aug 14, 2025 | A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS)… | ||
| CVE-2025-20115 | Hig | 0.56 | 8.6 | 0.01 | Mar 12, 2025 | A vulnerability in confederation implementation for the Border Gateway Protocol (BGP) in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to a memory corruption that occurs when… | ||
| CVE-2024-52063 | Hig | 0.56 | 8.6 | 0.00 | Dec 13, 2024 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Core Libraries, Routing Service) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.0.0 before 7.3.0.5, from 6.1.0 before 6.1.2.21,… | ||
| CVE-2023-46960 | Hig | 0.56 | 8.6 | 0.01 | Apr 29, 2024 | Buffer Overflow vulnerability in PyPXE v.1.8.4 allows a remote attacker to cause a denial of service via the handle function in the tftp module. | ||
| CVE-2024-20267 | Hig | 0.56 | 8.6 | 0.01 | Feb 29, 2024 | A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. This vulnerability… | ||
| CVE-2023-3471 | Hig | 0.56 | 8.6 | 0.00 | Sep 6, 2023 | Buffer overflow vulnerability in Panasonic KW Watcher versions 1.00 through 2.82 may allow attackers to execute arbitrary code. | ||
| CVE-2023-20162 | Hig | 0.56 | 8.6 | 0.01 | May 18, 2023 | Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These… | ||
| CVE-2023-20158 | Hig | 0.56 | 8.6 | 0.01 | May 18, 2023 | Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These… | ||
| CVE-2023-20157 | Hig | 0.56 | 8.6 | 0.01 | May 18, 2023 | Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These… | ||
| CVE-2023-20156 | Hig | 0.56 | 8.6 | 0.01 | May 18, 2023 | Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These… | ||
| CVE-2023-20024 | Hig | 0.56 | 8.6 | 0.01 | May 18, 2023 | Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These… | ||
| CVE-2022-43389 | Hig | 0.56 | 8.6 | 0.01 | Jan 11, 2023 | A buffer overflow vulnerability in the library of the web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device. | ||
| CVE-2021-22275 | Hig | 0.56 | 8.6 | 0.01 | May 13, 2022 | Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service. | ||
| CVE-2021-32781 | Hig | 0.56 | 8.6 | 0.01 | Aug 24, 2021 | Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions after Envoy sends a locally generated response it must stop further processing of request or response data. However when local response is… | ||
| CVE-2021-22659 | Hig | 0.56 | 8.6 | 0.02 | Mar 25, 2021 | Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer… |
- risk 0.56cvss —epss 0.00
A denial-of-service issue exists in 5380/5480/5580 controllers boot firmware lower than version 1.072. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to enter a major non-recoverable fault…
- risk 0.56cvss —epss 0.00
A denial-of-service issue exists in 5380/5480/5580 controllers. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to enter a major non-recoverable fault (MNRF).
- risk 0.56cvss —epss 0.00
A denial-of-service issue exists in 5370/5570 controllers. This vulnerability could potentially allow a remote user to load an invalid project, causing the device to enter a major non-recoverable fault (MNRF).
- risk 0.56cvss 8.6epss 0.01
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- risk 0.56cvss 8.6epss 0.01
Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- risk 0.56cvss 8.6epss 0.01
A vulnerability in the RADIUS proxy feature for the IPsec VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS)…
- risk 0.56cvss 8.6epss 0.01
A vulnerability in confederation implementation for the Border Gateway Protocol (BGP) in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to a memory corruption that occurs when…
- risk 0.56cvss 8.6epss 0.00
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Core Libraries, Routing Service) allows Overflow Variables and Tags.This issue affects Connext Professional: from 7.0.0 before 7.3.0.5, from 6.1.0 before 6.1.2.21,…
- risk 0.56cvss 8.6epss 0.01
Buffer Overflow vulnerability in PyPXE v.1.8.4 allows a remote attacker to cause a denial of service via the handle function in the tftp module.
- risk 0.56cvss 8.6epss 0.01
A vulnerability with the handling of MPLS traffic for Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the netstack process to unexpectedly restart, which could cause the device to stop processing network traffic or to reload. This vulnerability…
- risk 0.56cvss 8.6epss 0.00
Buffer overflow vulnerability in Panasonic KW Watcher versions 1.00 through 2.82 may allow attackers to execute arbitrary code.
- risk 0.56cvss 8.6epss 0.01
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These…
- risk 0.56cvss 8.6epss 0.01
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These…
- risk 0.56cvss 8.6epss 0.01
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These…
- risk 0.56cvss 8.6epss 0.01
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These…
- risk 0.56cvss 8.6epss 0.01
Multiple vulnerabilities in the web-based user interface of certain Cisco Small Business Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges on an affected device. These…
- risk 0.56cvss 8.6epss 0.01
A buffer overflow vulnerability in the library of the web server in Zyxel NR7101 firmware prior to V1.15(ACCC.3)C0, which could allow an unauthenticated attacker to execute some OS commands or to cause denial-of-service (DoS) conditions on a vulnerable device.
- risk 0.56cvss 8.6epss 0.01
Buffer Overflow vulnerability in B&R Automation Runtime webserver allows an unauthenticated network-based attacker to stop the cyclic program on the device and cause a denial of service.
- risk 0.56cvss 8.6epss 0.01
Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions after Envoy sends a locally generated response it must stop further processing of request or response data. However when local response is…
- risk 0.56cvss 8.6epss 0.02
Rockwell Automation MicroLogix 1400 Version 21.6 and below may allow a remote unauthenticated attacker to send a specially crafted Modbus packet allowing the attacker to retrieve or modify random values in the register. If successfully exploited, this may lead to a buffer…