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CWE-120

4,476 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 (4,476)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Schneider Electric
1Interactive Graphical Scada System Data Collector
Jun 17, 2026
Feb 11, 2022
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length check on user supplied data, when a constructed message is received on the netwo...Show more
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length check on user supplied data, when a constructed message is received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)Show less
1Qualcomm
151Apq8096au Firmware
Ar8031 FirmwareAr8035 Firmware+148 more
Jun 17, 2026
Feb 11, 2022
N/A· v4
6.7 MEDIUM· v3
4.6 MEDIUM· v2
Possible out of bound write due to lack of boundary check for the maximum size of buffer when sending a DCI packet to remote process in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial...Show more
Possible out of bound write due to lack of boundary check for the maximum size of buffer when sending a DCI packet to remote process in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and NetworkingShow less
1Qualcomm
101Apq8009w Firmware
Apq8017 FirmwareApq8053 Firmware+98 more
Jun 17, 2026
Feb 11, 2022
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
Improper validation of maximum size of data write to EFS file can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice...Show more
Improper validation of maximum size of data write to EFS file can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon WearablesShow less
1Qualcomm
137Apq8009w Firmware
Apq8017 FirmwareApq8096au Firmware+134 more
Jun 17, 2026
Feb 11, 2022
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
Improper validation of input when provisioning the HDCP key can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Vo...Show more
Improper validation of input when provisioning the HDCP key can lead to memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Voice & Music, Snapdragon WearablesShow less
1Qualcomm
43Mdm9650 Firmware
Qca6174a FirmwareQca6390 Firmware+40 more
Jun 17, 2026
Feb 11, 2022
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
Improper size validation of QXDM commands can lead to memory corruption in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile
1Schneider Electric
1Interactive Graphical Scada System Data Server
Jun 17, 2026
Feb 9, 2022
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could cause a stack-based buffer overflow potentially leading to remote code execution when an attacker sends a specially crafted message. A...Show more
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could cause a stack-based buffer overflow potentially leading to remote code execution when an attacker sends a specially crafted message. Affected Product: Interactive Graphical SCADA System Data Server (V15.0.0.22020 and prior)Show less
2Intel
Netapp
681Atom C3308
Atom C3336Atom C3338+678 more
Jun 17, 2026
Feb 9, 2022
N/A· v4
6.7 MEDIUM· v3
4.6 MEDIUM· v2
Buffer overflow in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
1Rockcarry
1Ffjpeg
Jun 17, 2026
Feb 8, 2022
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
Global buffer overflow vulnerability exist in ffjpeg through 01.01.2021. It is similar to CVE-2020-23705. Issue is in the jfif_encode function at ffjpeg/src/jfif.c (line 708) could cause a Denial of Service by using a cr...Show more
Global buffer overflow vulnerability exist in ffjpeg through 01.01.2021. It is similar to CVE-2020-23705. Issue is in the jfif_encode function at ffjpeg/src/jfif.c (line 708) could cause a Denial of Service by using a crafted jpeg file.Show less
1Tp Link
1Wn886n Firmware
Jun 17, 2026
Feb 8, 2022
N/A· v4
6.5 MEDIUM· v3
4.0 MEDIUM· v2
TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant & in parameter.
1Debian
1Perm
Jun 17, 2026
Feb 5, 2022
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
perM 0.4.0 has a Buffer Overflow related to strncpy. (Debian initially fixed this in 0.4.0-7.)
1Schneider Electric
1Easergy P3 Firmware
Jun 17, 2026
Feb 4, 2022
N/A· v4
8.8 HIGH· v3
8.3 HIGH· v2
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could lead to a buffer overflow causing program crashes and arbitrary code execution when specially crafted packets are sent to the device o...Show more
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could lead to a buffer overflow causing program crashes and arbitrary code execution when specially crafted packets are sent to the device over the network. Protection functions and tripping function via GOOSE can be impacted. Affected Product: Easergy P3 (All versions prior to V30.205)Show less
1Schneider Electric
1Easergy P5 Firmware
Jun 17, 2026
Feb 4, 2022
N/A· v4
8.8 HIGH· v3
8.3 HIGH· v2
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could lead to a buffer overflow causing program crashes and arbitrary code execution when specially crafted packets are sent to the device o...Show more
A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could lead to a buffer overflow causing program crashes and arbitrary code execution when specially crafted packets are sent to the device over the network. Protection functions and tripping function via GOOSE can be impacted. Affected Product: Easergy P5 (All firmware versions prior to V01.401.101)Show less
1Hpe
7Flexnetwork 5130 Jg932a Firmware
Flexnetwork 5130 Jg933a FirmwareFlexnetwork 5130 Jg934a Firmware+4 more
Jun 17, 2026
Feb 4, 2022
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
A potential local buffer overflow vulnerability has been identified in HPE FlexNetwork 5130 EL Switch Series version: Prior to 5130_EI_7.10.R3507P02. HPE has made the following software update to resolve the vulnerabilit...Show more
A potential local buffer overflow vulnerability has been identified in HPE FlexNetwork 5130 EL Switch Series version: Prior to 5130_EI_7.10.R3507P02. HPE has made the following software update to resolve the vulnerability in HPE FlexNetwork 5130 EL Switch Series version 5130_EL_7.10.R3507P02.Show less
1Sealevel
1Seaconnect 370w Firmware
Jun 17, 2026
Feb 4, 2022
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [3] the json_object_get_string...Show more
An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [3] the json_object_get_string to populate the p_name global variable. The p_name is only 0x80 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write.Show less
1Sealevel
1Seaconnect 370w Firmware
Jun 17, 2026
Feb 4, 2022
N/A· v4
8.1 HIGH· v3
6.8 MEDIUM· v2
An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [4] the json_object_get_string...Show more
An out-of-bounds write vulnerability exists in the HandleSeaCloudMessage functionality of Sealevel Systems, Inc. SeaConnect 370W v1.3.34. The HandleIncomingSeaCloudMessage function uses at [4] the json_object_get_string to populate the p_payload global variable. The p_payload is only 0x100 bytes long, and the total MQTT message could be up to 0x201 bytes. Because the function json_object_get_string will fill str based on the length of the json’s value and not the actual str size, this would result in a possible out-of-bounds write.Show less
1Virustotal
1Yara
Jun 17, 2026
Feb 4, 2022
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
A Buffer Overflow vulnerablity exists in VirusTotal YARA git commit: 605b2edf07ed8eb9a2c61ba22eb2e7c362f47ba7 via yr_set_configuration in yara/libyara/libyara.c, which could cause a Denial of Service.
3Debian
FedoraprojectInvisible Island
3Debian Linux
FedoraXterm
Jun 17, 2026
Jan 31, 2022
N/A· v4
5.5 MEDIUM· v3
2.6 LOW· v2
xterm through Patch 370, when Sixel support is enabled, allows attackers to trigger a buffer overflow in set_sixel in graphics_sixel.c via crafted text.
1Cesanta
1Mjs
Jun 17, 2026
Jan 27, 2022
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via snquote at src/mjs_json.c.
1Cesanta
1Mjs
Jun 17, 2026
Jan 27, 2022
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via c_vsnprintf at mjs/src/common/str_util.c.
1Cesanta
1Mjs
Jun 17, 2026
Jan 27, 2022
N/A· v4
7.8 HIGH· v3
6.8 MEDIUM· v2
Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via mjs_mk_string at mjs/src/mjs_string.c.