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CWE-120

4,226 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 (4,226)

CVE
VENDORS
PRODUCTS
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PUBLISHED
CVSS
1Edimax
1Re11s Firmware
Jun 17, 2026
Jan 16, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
RE11S v1.11 was discovered to contain a stack overflow via the rootAPmac parameter in the formStaDrvSetup function.
1Edimax
1Re11s Firmware
Jun 17, 2026
Jan 16, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
RE11S v1.11 was discovered to contain a stack overflow via the selSSID parameter in the formWlSiteSurvey function.
1Edimax
1Re11s Firmware
Jun 17, 2026
Jan 16, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
RE11S v1.11 was discovered to contain a stack overflow via the pptpUserName parameter in the setWAN function.
1Linux
1Linux Kernel
Jun 17, 2026
Jan 15, 2025
N/A· v4
5.5 MEDIUM· v3
N/A· v2
In the Linux kernel, the following vulnerability has been resolved: nvmet: Don't overflow subsysnqn nvmet_root_discovery_nqn_store treats the subsysnqn string like a fixed size buffer, even though it is dynamically all...Show more
In the Linux kernel, the following vulnerability has been resolved: nvmet: Don't overflow subsysnqn nvmet_root_discovery_nqn_store treats the subsysnqn string like a fixed size buffer, even though it is dynamically allocated to the size of the string. Create a new string with kstrndup instead of using the old buffer.Show less
1Tenda
1I24 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Tenda i24 V2.0.0.5 is vulnerable to Buffer Overflow in the addWifiMacFilter function.
1H3c
1N12 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the mac address editing function. Attackers who successfully exploit this vulnerability can cause the remote target devi...Show more
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the mac address editing function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending a POST request to /bin/webs.Show less
1H3c
1N12 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the 5G wireless network processing function. Attackers who successfully exploit this vulnerability can cause the remote...Show more
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the 5G wireless network processing function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending a POST request to /bin/webs.Show less
1H3c
1N12 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the AP configuration function. Attackers who successfully exploit this vulnerability can cause the remote target device...Show more
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the AP configuration function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending a POST request to /bin/webs.Show less
1H3c
1N12 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the mac address update function. Attackers who successfully exploit this vulnerability can cause the remote target devic...Show more
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the mac address update function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending a POST request to /bin/webs.Show less
1H3c
1N12 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
9.8 CRITICAL· v3
N/A· v2
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the 2.4G wireless network processing function. Attackers who successfully exploit this vulnerability can cause the remot...Show more
H3C N12 V100R005 contains a buffer overflow vulnerability due to the lack of length verification in the 2.4G wireless network processing function. Attackers who successfully exploit this vulnerability can cause the remote target device to crash or execute arbitrary commands by sending a POST request to /bin/webs.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A buffer overflow vulnerability exists in the `sel_mode` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A buffer overflow vulnerability exists in the `qos_dat` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the qos.cgi qos_settings() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.A buffer overflow vulnerability exists in the `qos_bandwidth` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
A buffer overflow vulnerability exists in the adm.cgi set_sys_adm() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an au...Show more
A buffer overflow vulnerability exists in the adm.cgi set_sys_adm() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger this vulnerability.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability exists in the `en_enable` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability exists in the `cli_mac` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can m...Show more
Multiple buffer overflow vulnerabilities exist in the internet.cgi set_qos() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger these vulnerabilities.This vulnerability exists in the `cli_name` POST parameter.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
A buffer overflow vulnerability exists in the adm.cgi rep_as_router() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an...Show more
A buffer overflow vulnerability exists in the adm.cgi rep_as_router() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger this vulnerability.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
An arbitrary code execution vulnerability exists in the adm.cgi set_MeshAp() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make...Show more
An arbitrary code execution vulnerability exists in the adm.cgi set_MeshAp() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.Show less
1Wavlink
1Wl Wn533a8 Firmware
Jun 17, 2026
Jan 14, 2025
N/A· v4
7.2 HIGH· v3
N/A· v2
A buffer overflow vulnerability exists in the adm.cgi set_wzap() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authe...Show more
A buffer overflow vulnerability exists in the adm.cgi set_wzap() functionality of Wavlink AC3000 M33A8.V5030.210505. A specially crafted HTTP request can lead to stack-based buffer overflow. An attacker can make an authenticated HTTP request to trigger this vulnerability.Show less