CWE-120— Buffer Copy without Checking Size (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.— MITRE CWE catalog
4,711 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-120page 23 of 95
- CVE-2024-40086CRITICALCVSS 9.6EG 9.62024-10-21
A Buffer Overflow vulnerability in the local_app_set_router_wifi_SSID_PWD function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via a password field larger than 64 bytes in leng…
- CVE-2024-40085CRITICALCVSS 9.6EG 9.62024-10-21
A Buffer Overflow vulnerability in the local_app_set_router_wan function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via pppoe_username and pppoe_password fields being larger t…
- CVE-2024-40084CRITICALCVSS 9.6EG 9.62024-10-21
A Buffer Overflow in the Boa webserver of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via exceptionally long HTTP methods or paths.
- CVE-2024-40083CRITICALCVSS 9.6EG 9.62024-10-21
A Buffer Overflow vulnerabilty in the local_app_set_router_token function of Vilo 5 Mesh WiFi System <= 5.16.1.33 allows remote, unauthenticated attackers to execute arbitrary code via sscanf reading the token and timezone JSON fields into…
- CVE-2024-23617CRITICALCVSS 9.6EG 9.62024-01-26
A buffer overflow vulnerability exists in Symantec Data Loss Prevention version 14.0.2 and before. A remote, unauthenticated attacker can exploit this vulnerability by enticing a user to open a crafted document to achieve code execution.
- CVE-2023-32722CRITICALCVSS 9.6EG 9.62023-10-12
The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files via zbx_json_open.
- CVE-2023-4264CRITICALCVSS 9.6EG 9.62023-09-27
Potential buffer overflow vulnerabilities n the Zephyr Bluetooth subsystem.
- CVE-2021-3966CRITICALCVSS 9.6EG 9.62023-01-11
usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem.
- CVE-2022-26649CRITICALCVSS 9.6EG 9.62022-07-12
A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-…
- CVE-2021-45611CRITICALCVSS 9.6EG 9.62021-12-26
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects DC112A before 1.0.0.52, R6400 before 1.0.1.68, RAX200 before 1.0.3.106, WNDR3400v3 before 1.0.1.38, XR300 before 1.0.3.68, R8500 before …
- CVE-2021-45610CRITICALCVSS 9.6EG 9.62021-12-26
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.66, D6400 before 1.0.0.100, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.52, DGN2200v4 before …
- CVE-2021-45609CRITICALCVSS 9.6EG 9.62021-12-26
Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D8500 before 1.0.3.58, R6250 before 1.0.4.48, R7000 before 1.0.11.116, R7100LG before 1.0.0.64, R7900 before 1.0.4.38, R8300 before 1.0.…
- CVE-2021-45527CRITICALCVSS 9.6EG 9.62021-12-26
Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects D6220 before 1.0.0.68, D6400 before 1.0.0.102, D7000v2 before 1.0.0.66, D8500 before 1.0.3.58, DC112A before 1.0.0.54, EX7000 before 1.0.1.94,…
- CVE-2026-97631CRITICALCVSS 9.5EG 9.52026-10-22
EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability can lead to arb…
- CVE-2024-13503CRITICALCVSS 9.5EG 9.52025-01-17
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Newtec NTC2218, NTC2250, NTC2299 on Linux, PowerPC, ARM (Updating signaling process in the swdownload binary modules) allows Local Execution of Code, R…
- CVE-2026-112521CRITICALCVSS 9.3EG 9.32026-10-26
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A sandboxed process may be able to circumvent sandbox restrictions.
- CVE-2026-76746CRITICALCVSS 9.3EG 9.32026-10-06
An unauthenticated buffer overflow vulnerability exists in AOS-S. Successful exploitation could allow an unauthenticated adjacent attacker to expose sensitive memory contents and cause a denial of service on the affected device.
- CVE-2026-54257CRITICALCVSS 9.3EG 9.32026-06-15
Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will cr…
- CVE-2026-20794CRITICALCVSS 9.3EG 9.32026-05-12
Buffer overflow for the Intel(R) Data Center Graphics Driver for VMware ESXi software before version 2.0.2 within Ring 1: Device Drivers may allow an escalation of privilege. System software adversary with a privileged user combined with a…
- CVE-2025-14310CRITICALCVSS 9.3EG 9.32025-12-09
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb.This issue affects rethinkdb: before 2.4.4.
- CVE-2024-12373CRITICALCVSS 9.3EG 9.32024-12-18
A denial-of-service vulnerability exists in the Rockwell Automation Power Monitor 1000. The vulnerability results in a buffer-overflow, potentially causing denial-of-service.
- CVE-2023-43556CRITICALCVSS 9.3EG 9.32024-06-03
Memory corruption in Hypervisor when platform information mentioned is not aligned.
- CVE-2023-43538CRITICALCVSS 9.3EG 9.32024-06-03
Memory corruption in TZ Secure OS while Tunnel Invoke Manager initialization.
- CVE-2023-33072CRITICALCVSS 9.3EG 9.32024-02-06
Memory corruption in Core while processing control functions.
- CVE-2023-33030CRITICALCVSS 9.3EG 9.32024-01-02
Memory corruption in HLOS while running playready use-case.
- CVE-2022-33288CRITICALCVSS 9.3EG 9.32023-04-13
Memory corruption due to buffer copy without checking the size of input in Core while sending SCM command to get write protection information.
- CVE-2022-33232CRITICALCVSS 9.3EG 9.32023-02-12
Memory corruption due to buffer copy without checking size of input while running memory sharing tests with large scattered memory.
- CVE-2021-0268CRITICALCVSS 8.8EG 9.32021-04-22
An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the int…
- CVE-2023-51434CRITICALCVSS 7.8EG 9.32023-12-29
Some Honor products are affected by buffer overflow vulnerability, successful exploitation could cause code execution.
- CVE-2012-6075HIGHCVSS v2 9.3EG 9.32013-02-13
Buffer overflow in the e1000_receive function in the e1000 device driver (hw/e1000.c) in QEMU 1.3.0-rc2 and other versions, when the SBP and LPE flags are disabled, allows remote attackers to cause a denial of service (guest OS crash) and …
- CVE-2013-0760HIGHCVSS v2 9.3EG 9.32013-01-13
Buffer overflow in the CharDistributionAnalysis::HandleOneChar function in Mozilla Firefox before 18.0, Thunderbird before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via a crafted document.
- CVE-2011-0481HIGHCVSS v2 9.3EG 9.32011-01-14
Buffer overflow in Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to PDF shading.
- CVE-2011-0480HIGHCVSS v2 9.3EG 9.32011-01-14
Multiple buffer overflows in vorbis_dec.c in the Vorbis decoder in FFmpeg, as used in Google Chrome before 8.0.552.237 and Chrome OS before 8.0.552.344, allow remote attackers to cause a denial of service (memory corruption and application…
- CVE-2010-2434HIGHCVSS v2 9.3EG 9.32010-06-25
Buffer overflow in Arcext.dll 2.16.1 and earlier in pon software Explzh 5.62 and earlier allows remote attackers to execute arbitrary code via an LZH LHA file with a crafted header that is not properly handled during expansion.
- CVE-2008-1887HIGHCVSS v2 9.3EG 9.32008-04-18
Python 2.5.2 and earlier allows context-dependent attackers to execute arbitrary code via multiple vectors that cause a negative size value to be provided to the PyString_FromStringAndSize function, which allocates less memory than expecte…
- CVE-2008-0379HIGHCVSS v2 9.3EG 9.32008-01-22
Race condition in the Enterprise Tree ActiveX control (EnterpriseControls.dll 11.5.0.313) in Crystal Reports XI Release 2 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the SelectedSess…
- CVE-2007-2809HIGHCVSS v2 9.3EG 9.32007-05-22
Buffer overflow in the transfer manager in Opera before 9.21 for Windows allows user-assisted remote attackers to execute arbitrary code via a crafted torrent file. NOTE: due to the lack of details, it is not clear if this is the same iss…
- CVE-2003-1388HIGHCVSS v2 9.3EG 9.32003-12-31
Buffer overflow in Opera 7.02 Build 2668 allows remote attackers to crash Opera via a long HTTP request ending in a .ZIP extension.
- CVE-2026-93857CRITICALCVSS 9.2EG 9.22026-10-27
A stack-based buffer overflow vulnerability in Fireware OS's SIP proxy allows a remote, unauthenticated attacker to execute arbitrary code by sending a specially crafted request through a policy that uses the SIP proxy.
- CVE-2025-11698CRITICALCVSS 9.2EG 9.22026-07-14
A denial-of-service issue exists in 5380/5480/5580 controllers boot firmware lower than version 1.072. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to e…
- CVE-2025-12012CRITICALCVSS 9.2EG 9.22026-07-14
A denial-of-service issue exists in 5380/5480/5580 controllers. This vulnerability could potentially allow a malicious user to write invalid file data to the controller, causing the device to enter a major non-recoverable fault (MNRF).
- CVE-2025-12011CRITICALCVSS 9.2EG 9.22026-07-14
A denial-of-service issue exists in 5370/5570 controllers. This vulnerability could potentially allow a remote user to load an invalid project, causing the device to enter a major non-recoverable fault (MNRF).
- CVE-2026-76747CRITICALCVSS 9.1EG 9.12026-10-06
Buffer overflow vulnerabilities exist in the affected interface of AOS-S. Successful exploitation could allow an unauthenticated remote attacker to expose sensitive memory contents and cause a denial of service on the device.
- CVE-2026-45537CRITICALCVSS 9.1EG 9.12026-08-04
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. In versions prior to 3.6.6 and 4.0.0-rc1, the construct_uri() function concatenates multiple URI components (protocol, username, domain, port, params) into a fixed 1024…
- CVE-2026-45100CRITICALCVSS 9.1EG 9.12026-08-04
OpenSIPS is a Session Initiation Protocol (SIP) server implementation. Versions 3.4.0-beta through 3.6.5 and 4.0.0-beta contain a buffer overflow in the {s.b64encode} string transformation. The size check for {s.b64encode} only verifies t…
- CVE-2026-16364CRITICALCVSS 9.1EG 9.12026-07-21
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
- CVE-2026-4177CRITICALCVSS 9.1EG 9.12026-03-17
YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter. The heap overflow occurs when class names exceed the initial 512-byte allocation.…
- CVE-2024-53695CRITICALCVSS 9.1EG 9.12025-03-07
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 followi…
- CVE-2024-39803CRITICALCVSS 9.1EG 9.12025-01-14
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 authenticate…
- CVE-2024-39802CRITICALCVSS 9.1EG 9.12025-01-14
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 authenticate…
Map vulnerabilities like CWE-120 to your infrastructure
EchelonGraph correlates every CVE — across CWE-120 and 150+ other weakness categories — against the assets you actually run. See blast radius, fix versions, and remediation steps in one graph.
Book a Demo →