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
4,457 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-120page 87 of 90
- CVE-2026-44880HIGHCVSS 8.8EG 8.82026-07-21
A buffer overflow vulnerability was found in the command line interface of AOS-CX. Successful exploitation of these vulnerabilities could allow an remote low-privileged user to execute arbitrary code as a privileged user on the underlying …
- CVE-2026-4565HIGHCVSS 8.8EG 8.82026-03-23
A vulnerability was detected in Tenda AC21 16.03.08.16. Impacted is the function formSetQosBand of the file /goform/SetNetControlList. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated r…
- CVE-2026-45811HIGHCVSS 7.5EG 7.52026-07-24
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Apache NimBLE. The HCI socket transport did not check whether a received HCI event would fit the configured event pool before copying it, allowing a bu…
- CVE-2026-46332HIGHCVSS 8.0EG 8.02026-06-09
In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. T…
- CVE-2026-4687HIGHCVSS 8.6EG 8.62026-03-24
Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- CVE-2026-4689CRITICALCVSS 10.0EG 10.02026-03-24
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- CVE-2026-4690HIGHCVSS 8.6EG 8.62026-03-24
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
- CVE-2026-4720CRITICALCVSS 9.8EG 9.82026-03-24
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited…
- CVE-2026-4721CRITICALCVSS 9.8EG 9.82026-03-24
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could…
- CVE-2026-4729CRITICALCVSS 9.8EG 9.82026-03-24
Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability…
- CVE-2026-4862HIGHCVSS 8.8EG 8.82026-03-26
A security vulnerability has been detected in UTT HiPER 1250GW up to 3.2.7-210907-180535. This issue affects the function strcpy of the file /goform/formConfigDnsFilterGlobal of the component Parameter Handler. Such manipulation of the arg…
- CVE-2026-48686CRITICALCVSS 9.8EG 9.82026-05-26
FastNetMon Community Edition through 1.2.9 contains a stack-based buffer overflow in the BGP NLRI (Network Layer Reachability Information) decoder. The function decode_bgp_subnet_encoding_ipv4_raw() in src/bgp_protocol.cpp reads prefix_bit…
- CVE-2026-48696MEDIUMCVSS 6.2EG 6.22026-05-26
FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689.
- CVE-2026-48706HIGHCVSS 7.5EG 7.52026-06-26
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.34.0 until 1.35.13, 1.36.9, 1.37.5, and 1.38.3, a vulnerability exists in Envoy's TCP StatsD sink (TcpStatsdSink), where the thread-local flusher…
- CVE-2026-49759HIGHCVSS 8.2EG 8.22026-06-10
Stack-based Buffer Overflow vulnerability in Erlang OTP erts (inet_drv) allows an unauthenticated remote attacker to crash the BEAM VM by sending a crafted SCTP ERROR chunk. The sctp_parse_error_chunk function in erts/emulator/drivers/com…
- CVE-2026-4976HIGHCVSS 8.8EG 8.82026-03-27
A vulnerability was found in Totolink LR350 9.3.5u.6369_B20220309. This vulnerability affects the function setWiFiGuestCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument ssid results in buffer overflow. The attack can b…
- CVE-2026-51252CRITICALCVSS 9.8EG 9.82026-07-28
schreibfaul1 ESP32-audioI2S 3.4.5 has a buffer overflow vulnerability in the MP3Decoder::UnpackSFMPEG1 function due to missing input validation on attacker-controlled MP3 metadata.
- CVE-2026-51380CRITICALCVSS 9.8EG 9.82026-07-15
Buffer Overflow vulnerability in Tenda AC10 v3 (firmware V03.03.16.09) allows attackers to cause a permanent Denial of Service (DoS) or potentially execute remote code via the /cgi-bin/UploadCfg endpoint
- CVE-2026-5164MEDIUMCVSS 5.5EG 6.72026-03-30
A flaw was found in virtio-win. The `RhelDoUnMap()` function does not properly validate the number of descriptors provided by a user during an unmap request. A local user could exploit this input validation vulnerability by supplying an ex…
- CVE-2026-51808CRITICALCVSS 9.8EG 9.82026-07-14
Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded function in s…
- CVE-2026-52187HIGHCVSS 7.5EG 7.52026-07-02
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_483ba0 component
- CVE-2026-52189HIGHCVSS 7.5EG 7.52026-07-02
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_487330 component
- CVE-2026-52191HIGHCVSS 7.5EG 7.52026-07-02
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_444C8C component
- CVE-2026-52193HIGHCVSS 7.5EG 7.52026-07-01
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_447CAC component
- CVE-2026-52195HIGHCVSS 7.5EG 7.52026-07-01
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_472f08 component
- CVE-2026-52196HIGHCVSS 7.5EG 7.52026-06-30
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_416f28 component
- CVE-2026-52198HIGHCVSS 7.5EG 7.52026-07-01
Buffer Overflow vulnerability in UTT nv518G nv518GV3v3.2.7-210919-161313 allows a remote attacker to cause a denial of service via the gohead/sub_425994 component
- CVE-2026-5279HIGHCVSS 8.8EG 8.82026-04-01
Object corruption in V8 in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
- CVE-2026-53203HIGHCVSS 7.1EG 7.12026-06-25
In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Add buffer overflow check in MS get_info_ioctl Add validation that the info size returned from the metric stream info query is not exceeded when checked agai…
- CVE-2026-5404MEDIUMCVSS 4.7EG 4.72026-05-01
K12 RF5 file parser crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
- 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-2026-5566HIGHCVSS 8.8EG 8.82026-04-05
A vulnerability was detected in UTT HiPER 1250GW up to 3.2.7-210907-180535. This affects the function strcpy of the file /goform/formNatStaticMap. Performing a manipulation of the argument NatBind results in buffer overflow. Remote exploit…
- CVE-2026-5567HIGHCVSS 8.8EG 8.82026-04-05
A flaw has been found in Tenda M3 1.0.0.10. This vulnerability affects the function setAdvPolicyData of the file /goform/setAdvPolicyData of the component Destination Handler. Executing a manipulation of the argument policyType can lead to…
- CVE-2026-57246HIGHCVSS 7.8EG 7.82026-07-08
When dealing with abnormally constructed objects, there is a lack of argument validation; JavaScript triggers signature verification, but the signature plugin does not perform validation when copying the abnormal string, causing the applic…
- CVE-2026-57273HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-57274HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-57275HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-57276HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-57277HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-57278HIGHCVSS 8.3EG 8.32026-07-02
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the cap…
- CVE-2026-5734CRITICALCVSS 9.8EG 9.82026-04-07
Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have be…
- CVE-2026-57874HIGHCVSS 7.5EG 7.52026-06-26
An unauthenticated buffer overflow vulnerability exists in IEEE8021x_upload.cgi in GeoVision GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by insufficient bounds checking when parsing filename values in multipart…
- CVE-2026-58549MEDIUMCVSS 4.0EG 4.02026-07-15
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2026-58550MEDIUMCVSS 4.0EG 4.02026-07-15
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2026-58551MEDIUMCVSS 5.1EG 5.12026-07-15
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2026-58552MEDIUMCVSS 5.1EG 5.12026-07-15
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2026-58553MEDIUMCVSS 4.0EG 4.02026-07-15
Out-of-bounds read vulnerability in the image codec module. Impact: Successful exploitation of this vulnerability may affect service confidentiality.
- CVE-2026-59250HIGHCVSS 8.3EG 8.32026-07-27
Classic buffer overflow in the Erlang/OTP megaco flex scanner C driver allows a remote unauthenticated attacker to corrupt the driver's memory (and potentially achieve remote code execution or a denial-of-service crash) by sending a single…
- CVE-2026-5979HIGHCVSS 8.8EG 8.82026-04-09
A vulnerability was detected in D-Link DIR-605L 2.13B01. Affected by this vulnerability is the function formVirtualServ of the file /goform/formVirtualServ of the component POST Request Handler. The manipulation of the argument curTime res…
- CVE-2026-5980HIGHCVSS 8.8EG 8.82026-04-09
A flaw has been found in D-Link DIR-605L 2.13B01. Affected by this issue is the function formSetMACFilter of the file /goform/formSetMACFilter of the component POST Request Handler. This manipulation of the argument curTime causes buffer o…
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