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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
1Dlink
1Dir 513 Firmware
Mar 6, 2026
Mar 4, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
D-link Dir-513 A1FW110 is vulnerable to Buffer Overflow in the function formTcpipSetup.
1Cisco
2Adaptive Security Appliance Software
Firepower Threat Defense
May 4, 2026
Mar 4, 2026
N/A· v4
7.7 HIGH· v3
N/A· v2
A vulnerability in the LUA interperter of the Remote Access SSL VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an authenticat...Show more
A vulnerability in the LUA interperter of the Remote Access SSL VPN feature of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker with a valid VPN connection to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition. This does not affect the management or MUS interfaces. This vulnerability is due to trusting user input without validation in the LUA interprerter. An attacker could exploit this vulnerability by sending crafted HTTP packets to the Remote Access SSL VPN server. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.Show less
1Tenda
1Ac15 Firmware
Mar 5, 2026
Mar 3, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A buffer overflow vulnerability was discovered in goform/formSetMacFilterCfg in Tenda AC15V1.0 V15.03.05.18_multi.
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Apr 22, 2026
Mar 3, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A security vulnerability has been detected in LLM-Claw 0.1.0/0.1.1/0.1.1a/0.1.1a-p1. The affected element is the function agent_deploy_init of the file /agents/deploy/initiate.c of the component Agent Deployment. Such ma...Show more
A security vulnerability has been detected in LLM-Claw 0.1.0/0.1.1/0.1.1a/0.1.1a-p1. The affected element is the function agent_deploy_init of the file /agents/deploy/initiate.c of the component Agent Deployment. Such manipulation leads to buffer overflow. It is possible to launch the attack remotely. A patch should be applied to remediate this issue.Show less
1Tenda
1W20e Firmware
Mar 3, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addWewifiWhiteUser` function and processed by `s...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addWewifiWhiteUser` function and processed by `sscanf` without size validation, it could lead to a buffer overflow vulnerability.Show less
1Tenda
1W20e Firmware
Mar 3, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, " %d\t%[^\t]\t%[^\n...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may send overly long `addDhcpRules` data. When these rules enter the `addDhcpRule` function and are processed by `ret = sscanf(pRule, " %d\t%[^\t]\t%[^\n\r\t]", &dhcpsIndex, dhcpsIP, dhcpsMac);`, the lack of size validation for the rules could lead to buffer overflows in `dhcpsIndex`, `dhcpsIP`, and `dhcpsMac`.Show less
1Tenda
1W20e Firmware
Mar 3, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate the sizes of `gstup` and `gstdwn` before concatenating them into `gstruleQos` may lead to buffer overflow.
1Tenda
1W20e Firmware
Mar 3, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Failure to validate `pPortMapIndex` may lead to buffer overflows when using `strcpy`.
1Tenda
1W20e Firmware
Mar 5, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `spri...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `sprintf` without proper size validation, it could lead to a buffer overflow vulnerability.Show less
1Tenda
1W20e Firmware
Mar 5, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf`...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by specifying the value of `userInfo`. When `userInfo` is passed into the `addAuthUser` function and processed by `sscanf` without size validation, it could lead to buffer overflow.Show less
1Tenda
1W20e Firmware
Mar 5, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `picName`. When this value is used in `sprintf` without validating variable sizes, it could lea...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `picName`. When this value is used in `sprintf` without validating variable sizes, it could lead to a buffer overflow vulnerability.Show less
1Tenda
1W20e Firmware
Mar 3, 2026
Mar 2, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `spri...Show more
An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `nptr`. When this value is passed into the `getMibPrefix` function and concatenated using `sprintf` without proper size validation, it could lead to a buffer overflow vulnerability.Show less
1Mediatek
1Nbiot Sdk
Mar 3, 2026
Mar 2, 2026
N/A· v4
6.7 MEDIUM· v3
N/A· v2
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interac...Show more
In wlan STA driver, there is a possible escalation of privilege due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00473802; Issue ID: MSV-5970.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component httpd. The manipulation of the argument dips leads...Show more
A vulnerability was identified in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromGstDhcpSetSer of the file /goform/GstDhcpSetSer of the component httpd. The manipulation of the argument dips leads to buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in Tenda F453 1.0.0.3. Affected is the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. Executing a manipulation of the argument wanmode/PPPOEPassword can lead t...Show more
A vulnerability was determined in Tenda F453 1.0.0.3. Affected is the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. Executing a manipulation of the argument wanmode/PPPOEPassword can lead to buffer overflow. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was found in Tenda F453 1.0.0.3. This issue affects the function frmL7ImForm of the file /goform/L7Im. The manipulation of the argument page results in buffer overflow. The attack may be launched remotely...Show more
A vulnerability was found in Tenda F453 1.0.0.3. This issue affects the function frmL7ImForm of the file /goform/L7Im. The manipulation of the argument page results in buffer overflow. The attack may be launched remotely. The exploit has been made public and could be used.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in Tenda F453 1.0.0.3. This vulnerability affects the function fromSetIpBind of the file /goform/SetIpBind. The manipulation of the argument page leads to buffer overflow. The attack may be...Show more
A vulnerability has been found in Tenda F453 1.0.0.3. This vulnerability affects the function fromSetIpBind of the file /goform/SetIpBind. The manipulation of the argument page leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched r...Show more
A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromqossetting of the file /goform/qossetting. Executing a manipulation of the argument qos can lead to buffer overflow. The attack can be launched remotely. The exploit has been published and may be used.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Mar 1, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was detected in Tenda F453 1.0.0.3. Affected by this issue is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter. Performing a manipulation of the argument page results in buffer overflow. T...Show more
A vulnerability was detected in Tenda F453 1.0.0.3. Affected by this issue is the function fromSafeUrlFilter of the file /goform/SafeUrlFilter. Performing a manipulation of the argument page results in buffer overflow. The attack can be initiated remotely. The exploit is now public and may be used.Show less
1Tenda
1F453 Firmware
Mar 3, 2026
Feb 28, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A security vulnerability has been detected in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromSafeMacFilter of the file /goform/SafeMacFilter. Such manipulation of the argument page leads to buffer...Show more
A security vulnerability has been detected in Tenda F453 1.0.0.3. Affected by this vulnerability is the function fromSafeMacFilter of the file /goform/SafeMacFilter. Such manipulation of the argument page leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.Show less