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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
1Rx3 Firmware
Jun 17, 2026
Mar 13, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the deviceId parameter at /goform/saveParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS) via a c...Show more
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the deviceId parameter at /goform/saveParentControlInfo. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.Show less
1Tenda
1Rx3 Firmware
Jun 17, 2026
Mar 13, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the firewallEn parameter at /goform/SetFirewallCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafte...Show more
Tenda RX3 US_RX3V1.0br_V16.03.13.11_multi_TDE01 is vulnerable to Buffer Overflow via the firewallEn parameter at /goform/SetFirewallCfg. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted packet.Show less
1Softether
1Vpn
Jun 17, 2026
Mar 12, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through th...Show more
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in Internat.c via the UniToStrForSingleChars function. NOTE: the Supplier disputes this because the behavior only enables a local user to attack himself through the UI,Show less
1Softether
1Vpn
Jun 17, 2026
Mar 12, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in the Command.c file via the PtMakeCert and PtMakeCert2048 functions. NOTE: the Supplier disputes this because the behavior only allows a user to attack himself b...Show more
SoftEther VPN 5.02.5187 is vulnerable to Buffer Overflow in the Command.c file via the PtMakeCert and PtMakeCert2048 functions. NOTE: the Supplier disputes this because the behavior only allows a user to attack himself by typing a long string on a command line.Show less
1Cisco
1Ios Xr
Jun 17, 2026
Mar 12, 2025
N/A· v4
8.6 HIGH· v3
N/A· v2
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 vu...Show more
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 a BGP update is created with an AS_CONFED_SEQUENCE attribute that has 255 autonomous system numbers (AS numbers). An attacker could exploit this vulnerability by sending a crafted BGP update message, or the network could be designed in such a manner that the AS_CONFED_SEQUENCE attribute grows to 255 AS numbers or more. A successful exploit could allow the attacker to cause memory corruption, which may cause the BGP process to restart, resulting in a DoS condition. To exploit this vulnerability, an attacker must control a BGP confederation speaker within the same autonomous system as the victim, or the network must be designed in such a manner that the AS_CONFED_SEQUENCE attribute grows to 255 AS numbers or more.Show less
1Ashlar
1Cobalt
Jun 17, 2026
Mar 11, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User inter...Show more
Ashlar-Vellum Cobalt CO File Parsing Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-25240.Show less
1Qnap
1Hybrid Backup Sync
Jun 17, 2026
Mar 7, 2025
6.3 MEDIUM· v4
9.1 CRITICAL· v3
N/A· v2
A buffer overflow vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to modify memory or crash processes. We have already fixed the vulnerabi...Show more
A buffer overflow vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If exploited, the vulnerability could allow remote attackers to modify memory or crash processes. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 25.1.4.952 and laterShow less
1Openatom
1Openharmony
Jun 17, 2026
Mar 4, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
in OpenHarmony v5.0.2 and prior versions allow a local attacker cause DOS through buffer overflow.
1Openatom
1Openharmony
Jun 17, 2026
Mar 4, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
in OpenHarmony v5.0.2 and prior versions allow a local attacker cause DOS through buffer overflow.
1Tenda
1Tx3 Firmware
Jun 17, 2026
Mar 4, 2025
7.1 HIGH· v4
7.5 HIGH· v3
6.8 MEDIUM· v2
A vulnerability has been found in Tenda TX3 16.03.13.11_multi and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/setPptpUserList. The manipulation of the argument l...Show more
A vulnerability has been found in Tenda TX3 16.03.13.11_multi and classified as critical. Affected by this vulnerability is an unknown functionality of the file /goform/setPptpUserList. The manipulation of the argument list leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.Show less
1Tenda
1Tx3 Firmware
Jun 17, 2026
Mar 4, 2025
7.1 HIGH· v4
7.5 HIGH· v3
6.8 MEDIUM· v2
A vulnerability, which was classified as critical, was found in Tenda TX3 16.03.13.11_multi. Affected is an unknown function of the file /goform/openSchedWifi. The manipulation of the argument schedStartTime/schedEndTime...Show more
A vulnerability, which was classified as critical, was found in Tenda TX3 16.03.13.11_multi. Affected is an unknown function of the file /goform/openSchedWifi. The manipulation of the argument schedStartTime/schedEndTime leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.Show less
1Tenda
1Tx3 Firmware
Jun 17, 2026
Mar 4, 2025
7.1 HIGH· v4
7.5 HIGH· v3
6.8 MEDIUM· v2
A vulnerability, which was classified as critical, has been found in Tenda TX3 16.03.13.11_multi. This issue affects some unknown processing of the file /goform/SetNetControlList. The manipulation of the argument list le...Show more
A vulnerability, which was classified as critical, has been found in Tenda TX3 16.03.13.11_multi. This issue affects some unknown processing of the file /goform/SetNetControlList. The manipulation of the argument list 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
1Tx3 Firmware
Jun 17, 2026
Mar 4, 2025
7.1 HIGH· v4
7.5 HIGH· v3
6.8 MEDIUM· v2
A vulnerability classified as critical was found in Tenda TX3 16.03.13.11_multi. This vulnerability affects unknown code of the file /goform/SetStaticRouteCfg. The manipulation of the argument list leads to buffer overfl...Show more
A vulnerability classified as critical was found in Tenda TX3 16.03.13.11_multi. This vulnerability affects unknown code of the file /goform/SetStaticRouteCfg. The manipulation of the argument list 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
1Tx3 Firmware
Jun 17, 2026
Mar 4, 2025
7.1 HIGH· v4
7.5 HIGH· v3
6.8 MEDIUM· v2
A vulnerability classified as critical has been found in Tenda TX3 16.03.13.11_multi. This affects an unknown part of the file /goform/setMacFilterCfg. The manipulation of the argument deviceList leads to buffer overflow...Show more
A vulnerability classified as critical has been found in Tenda TX3 16.03.13.11_multi. This affects an unknown part of the file /goform/setMacFilterCfg. The manipulation of the argument deviceList leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.Show less
1Gnu
1Grub2
Jun 30, 2026
Mar 3, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the...Show more
When reading data from disk, the grub's UDF filesystem module utilizes the user controlled data length metadata to allocate its internal buffers. In certain scenarios, while iterating through disk sectors, it assumes the read size from the disk is always smaller than the allocated buffer size which is not guaranteed. A crafted filesystem image may lead to a heap-based buffer overflow resulting in critical data to be corrupted, resulting in the risk of arbitrary code execution by-passing secure boot protections.Show less
1Qualcomm
206205 Firmware
Apq8017 FirmwareAr8035 Firmware+203 more
Jun 17, 2026
Mar 3, 2025
N/A· v4
7.5 HIGH· v3
N/A· v2
Transient DOS may occur while processing the country IE.
1Qualcomm
14Fastconnect 6900 Firmware
Fastconnect 7800 FirmwareSdm429w Firmware+11 more
Jun 17, 2026
Mar 3, 2025
N/A· v4
7.8 HIGH· v3
N/A· v2
Memory corruption while processing camera use case IOCTL call.
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Jun 17, 2026
Mar 3, 2025
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Buffer overflow vulnerability exists in FutureNet AS series (Industrial Routers) and FA series (Protocol Conversion Machine) provided by Century Systems Co., Ltd. If this vulnerability is exploited, a remote unauthentica...Show more
Buffer overflow vulnerability exists in FutureNet AS series (Industrial Routers) and FA series (Protocol Conversion Machine) provided by Century Systems Co., Ltd. If this vulnerability is exploited, a remote unauthenticated attacker may reboot the device by sending a specially crafted request.Show less
1Radare
1Radare2
Jun 17, 2026
Mar 3, 2025
10.0 CRITICAL· v4
9.8 CRITICAL· v3
N/A· v2
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in radareorg radare2 allows Overflow Buffers.This issue affects radare2: before <5.9.9.
1Totolink
1Ex1800t Firmware
Jun 17, 2026
Mar 3, 2025
8.7 HIGH· v4
9.8 CRITICAL· v3
9.0 HIGH· v2
A vulnerability has been found in Totolink EX1800T 9.1.0cu.2112_B20220316 and classified as critical. This vulnerability affects the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument p...Show more
A vulnerability has been found in Totolink EX1800T 9.1.0cu.2112_B20220316 and classified as critical. This vulnerability affects the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.Show less