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CWE-120

4,417 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 (4,417)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Tenda
1Ac6 Firmware
Jun 17, 2026
Oct 22, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp para...Show more
Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp parameters.Show less
1Tenda
1Ac6 Firmware
Jun 17, 2026
Oct 22, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities in the openSchedWifi function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the schedStartTime and schedEndTi...Show more
Multiple buffer overflow vulnerabilities in the openSchedWifi function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the schedStartTime and schedEndTime parameters.Show less
1Tenda
1Ac6 Firmware
Jun 17, 2026
Oct 22, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Tenda AC6 V2.0 15.03.06.50 was discovered to contain a buffer overflow in the speed_dir parameter in the SetSpeedWan function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
1F5
21Big Ip Access Policy Manager
Big Ip Advanced Firewall ManagerBig Ip Advanced Web Application Firewall+18 more
Jun 17, 2026
Oct 15, 2025
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
When an iRule using an ILX::call command is configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technica...Show more
When an iRule using an ILX::call command is configured on a virtual server, undisclosed traffic can cause the Traffic Management Microkernel (TMM) to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.Show less
2Mediatek
Openwrt
2Openwrt
Software Development Kit
Jun 17, 2026
Oct 14, 2025
N/A· v4
8.8 HIGH· v3
N/A· v2
In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User inte...Show more
In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00415809; Issue ID: MSV-3405.Show less
-
-
Jun 17, 2026
Oct 14, 2025
N/A· v4
5.3 MEDIUM· v3
N/A· v2
The websocket handler is vulnerable to a denial of service condition. An unauthenticated remote attacker can send a crafted websocket message to trigger the issue without affecting the core functionality.
-
-
Jun 17, 2026
Oct 14, 2025
N/A· v4
5.3 MEDIUM· v3
N/A· v2
The webserver is vulnerable to a denial of service condition. An unauthenticated remote attacker can craft a special GET request with an over-long content-length to trigger the issue without affecting the core functional...Show more
The webserver is vulnerable to a denial of service condition. An unauthenticated remote attacker can craft a special GET request with an over-long content-length to trigger the issue without affecting the core functionality.Show less
1Utt
12620g Firmware
Jun 17, 2026
Oct 13, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in UTT HiPER 2620G up to 3.1.4. Impacted is the function strcpy of the file /goform/fNTP. This manipulation of the argument NTPServerIP causes buffer overflow. It is possible to initiate th...Show more
A vulnerability was determined in UTT HiPER 2620G up to 3.1.4. Impacted is the function strcpy of the file /goform/fNTP. This manipulation of the argument NTPServerIP causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Utt
1518g Firmware
Jun 17, 2026
Oct 13, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was found in UTT 进取 518G up to V3v3.2.7-210919-161313. This issue affects some unknown processing of the file /goform/formTaskEdit_ap. The manipulation of the argument txtMin2 results in buffer overflow....Show more
A vulnerability was found in UTT 进取 518G up to V3v3.2.7-210919-161313. This issue affects some unknown processing of the file /goform/formTaskEdit_ap. The manipulation of the argument txtMin2 results in buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Utt
1518g Firmware
Jun 17, 2026
Oct 13, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in UTT 进取 518G up to V3v3.2.7-210919-161313. This vulnerability affects the function sub_4247AC of the file /goform/formRemoteControl. The manipulation of the argument Profile leads to buff...Show more
A vulnerability has been found in UTT 进取 518G up to V3v3.2.7-210919-161313. This vulnerability affects the function sub_4247AC of the file /goform/formRemoteControl. The manipulation of the argument Profile leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Juniper
1Junos
Jun 17, 2026
Oct 9, 2025
8.2 HIGH· v4
5.9 MEDIUM· v3
N/A· v2
A Buffer Copy without Checking Size of Input vulnerability in the Session Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to...Show more
A Buffer Copy without Checking Size of Input vulnerability in the Session Initialization Protocol (SIP) ALG of Juniper Networks Junos OS on MX Series and SRX Series allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When memory utilization is high, and specific SIP packets are received, flowd/mspmand crashes. While the system recovers automatically, the disruption can significantly impact service stability. Continuous receipt of these specific SIP packets, while high utilization is present, will cause a sustained DoS condition. The utilization is outside the attackers control, so they would not be able to deterministically exploit this. This issue affects Junos OS on SRX Series and MX Series:  * All versions before 22.4R3-S7, * from 23.2 before 23.2R2-S4, * from 23.4 before 23.4R2-S5, * from 24.2 before 24.2R2.Show less
1Qualcomm
31Fastconnect 6700 Firmware
Fastconnect 6900 FirmwareFastconnect 7800 Firmware+28 more
Jun 17, 2026
Oct 9, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
memory corruption while processing an image encoding completion event.
1Totolink
1N600r Firmware
Jun 17, 2026
Oct 8, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipul...Show more
A security vulnerability has been detected in TOTOLINK N600R up to 4.3.0cu.7866_B20220506. This impacts the function setWiFiBasicConfig of the file /cgi-bin/cstecgi.cgi of the component HTTP Request Handler. Such manipulation of the argument wepkey leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.Show less
1Dlink
1Di 7001mini 8g Firmware
Jun 17, 2026
Oct 7, 2025
7.4 HIGH· v4
9.8 CRITICAL· v3
9.0 HIGH· v2
A security vulnerability has been detected in D-Link DI-7001 MINI 24.04.18B1. The affected element is an unknown function of the file /dbsrv.asp. Such manipulation of the argument str leads to buffer overflow. The attack...Show more
A security vulnerability has been detected in D-Link DI-7001 MINI 24.04.18B1. The affected element is an unknown function of the file /dbsrv.asp. Such manipulation of the argument str leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.Show less
1Tenda
1Ac20 Firmware
Jun 17, 2026
Oct 7, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file /goform/fast_setting_wifi_set. The manipulation of the argument timeZone leads to buffer overflow. T...Show more
A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file /goform/fast_setting_wifi_set. The manipulation of the argument timeZone leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.Show less
1Tenda
1Ac23 Firmware
Jun 17, 2026
Oct 7, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was found in Tenda AC23 up to 16.03.07.52. Affected by this issue is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. It is poss...Show more
A vulnerability was found in Tenda AC23 up to 16.03.07.52. Affected by this issue is the function sscanf of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used.Show less
1Utt
11250gw Firmware
Jun 17, 2026
Oct 7, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in UTT 1250GW up to v2v3.2.2-200710. Affected by this vulnerability is the function strcpy of the file /goform/aspChangeChannel. The manipulation of the argument pvid leads to buffer overfl...Show more
A vulnerability has been found in UTT 1250GW up to v2v3.2.2-200710. Affected by this vulnerability is the function strcpy of the file /goform/aspChangeChannel. The manipulation of the argument pvid leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Dlink
1Di 7100g C1 Firmware
Jun 17, 2026
Oct 6, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to...Show more
A vulnerability has been found in D-Link DI-7100G C1 up to 20250928. This issue affects the function sub_4BD4F8 of the file /webchat/hi_block.asp of the component jhttpd. The manipulation of the argument popupId leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.Show less
1Dlink
1Di 7100g C1 Firmware
Jun 17, 2026
Oct 6, 2025
7.4 HIGH· v4
9.8 CRITICAL· v3
9.0 HIGH· v2
A flaw has been found in D-Link DI-7100G C1 up to 20250928. This vulnerability affects the function sub_4C0990 of the file /webchat/login.cgi of the component jhttpd. Executing manipulation of the argument openid can lea...Show more
A flaw has been found in D-Link DI-7100G C1 up to 20250928. This vulnerability affects the function sub_4C0990 of the file /webchat/login.cgi of the component jhttpd. Executing manipulation of the argument openid can lead to buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.Show less
1Utt
11250gw Firmware
Jun 17, 2026
Oct 6, 2025
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in UTT 1250GW up to v2v3.2.2-200710. Affected is the function strcpy of the file /goform/formUserStatusRemark. This manipulation of the argument Username causes buffer overflow. Remote expl...Show more
A vulnerability was determined in UTT 1250GW up to v2v3.2.2-200710. Affected is the function strcpy of the file /goform/formUserStatusRemark. This manipulation of the argument Username causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.Show less