CWE-120: Buffer Copy without Checking Size of Input (Classic Buffer Overflow), page 7
Filter
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.
What the weakness is: CWE-120 at MITRE
Ask an AI about CWE-120
ChatGPTClaudePerplexityGoogle AI Mode
Show the prompt
Explain CWE-120: Buffer Copy without Checking Size of Input and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/120.html and https://cve.bz/cve/cwe/120?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this weakness's id and public links.
- 7.5CVE-2026-36816EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the wewifiWhiteUserInfo parameter of the formAddWewifiWhiteUser function. This vulnerability allows attackers to cause a Denial of Ser…
- 7.5CVE-2026-36815EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the hostname parameter of the formSetNetCheckTools function. This vulnerability allows attackers to cause a Denial of Service (DoS) vi…
- 7.5CVE-2026-36811EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the picName parameter of the formDelwebAuthPic function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a …
- 7.5CVE-2026-36810EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the gotoUrl parameter of the formPortalAuth function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a cra…
- 7.5CVE-2026-36809EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the webAuthWhiteID parameter of the formModifyWebAuthWhiteUser function. This vulnerability allows attackers to cause a Denial of Serv…
- 7.5CVE-2026-36808EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the webAuthUserInfo parameter of the formAddWebAuthUser function. This vulnerability allows attackers to cause a Denial of Service (Do…
- 7.5CVE-2026-36807EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda W15E v15.11.0.10 was discovered to contain a buffer overflow in the webAuthUserPwd parameter of the formAddWebAuthUser function. This vulnerability allows attackers to cause a Denial of Service (DoS…
- 7.5CVE-2026-36803EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda PW201A v1.0.5 was discovered to contain a buffer overflow in the page parameter of the qossetting function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HTTP …
- 7.5CVE-2026-36802EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda PW201A v1.0.5 was discovered to contain a buffer overflow in the page parameter of the SafeMacFilter function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted HT…
- 7.5CVE-2026-36801EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain a buffer overflow in the IPMacBindRule parameter of the formIPMacBindAdd function. This vulnerability allows attackers to cause a Denial of Service (DoS) via …
- 7.5CVE-2026-36800EPSS 0.3%
Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain a buffer overflow in the IPMacBindIndex parameter of the formIPMacBindDel function. This vulnerability allows attackers to cause a Denial of Service (DoS) via…
- 7.5CVE-2026-36799EPSS 0.4%
Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain a buffer overflow in the portalAuth parameter of the formPortalAuth function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a cra…
- 7.5CVE-2026-36797EPSS 0.4%
Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain a stack overflow in the IPMacBindRuleIp parameter of the formIPMacBindModify function. This vulnerability allows attackers to cause a Denial of Service (DoS) …
- 7.5CVE-2026-36796EPSS 0.4%
Shenzhen Tenda Technology Co., Ltd Tenda G0 v15.11.0.5 was discovered to contain a stack overflow in the picCropName parameter of the formCropAndSetWewifiPic function. This vulnerability allows attackers to cause a Denial of Service (DoS) …
- 9.8CVE-2026-30141EPSS 0.6%
An issue was discovered in bitbank2 AnimatedGIF v2.2.0. A buffer overflow in the DecodeLZW function allows remote attackers to cause a denial of service (crash) or potentially execute arbitrary code via a crafted GIF file.
- 8.0CVE-2026-46332EPSS 0.2%
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…
- 9.8CVE-2026-9698EPSS 0.5%
DBI versions before 1.648 for Perl saved errors in a limited-sized buffer. Error messages that were returned when RaiseError, PrintError or HandleError were set were written to a 200-byte buffer without a length limit. Attackers that can…
- 7.5CVE-2026-42536EPSS 1.0%
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, …
- 7.5CVE-2026-34355EPSS 1.2%
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
- 7.4CVE-2026-11517EPSS 0.6%
A vulnerability was determined in UTT HiPER 2610G up to 3.0.0-171107. This impacts the function strcpy of the file /goform/formConfigDnsFilterGlobal. Executing a manipulation of the argument GroupName can lead to buffer overflow. The attac…
- 2.0CVE-2026-11516EPSS 0.4%
A vulnerability was found in UTT HiPER 2610G up to 3.0.0-171107. This affects the function strcpy of the file /goform/formNatStaticMap. Performing a manipulation of the argument NatBinds results in buffer overflow. The exploit has been mad…
- 9.3CVE-2019-25741EPSS 0.6%
Mobatek MobaXterm 12.1 contains a structured exception handling (SEH) based buffer overflow vulnerability in the username field of session files that allows remote attackers to execute arbitrary code. Attackers can craft a malicious MobaXt…
- 8.6CVE-2019-25736EPSS 0.1%
LabF nfsAxe 3.7 Ping Client contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload in the Host IP field. Attackers can craft a specially formatted input file with she…
- 8.6CVE-2019-25735EPSS 0.1%
AllPlayer 7.4 contains a local buffer overflow vulnerability in URL handling that allows attackers to overwrite structured exception handling pointers by supplying an excessively long URL string. Attackers can craft a malicious URL, paste …
- 8.6CVE-2019-25733EPSS 0.1%
NetShareWatcher 1.5.8.0 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying malicious input. Attackers can craft a payload with overwritten SEH and NSEH p…
- 8.8CVE-2026-30652EPSS 0.5%
A remote buffer overflow vulnerability exists in the /cgi-bin/dido/setdo.cgi endpoint of the admin interface of Vivotek FD8136 cameras running firmware version FD8136-VVTK-0300a. This flaw allows an authenticated attacker to execute arbitr…
- 8.8CVE-2026-30650EPSS 0.6%
A post-authentication remote buffer overflow vulnerability exists in the /cgi-bin/admin/eventtask.cgi endpoint of the admin interface of Vivotek FD8136 cameras running firmware version FD8136-VVTK-0300a. This flaw allows an authenticated a…
- 6.5CVE-2026-3871EPSS 0.2%
A buffer overflow vulnerability in the UPnP DeletePortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could allow an adjacent attacker to trigger a temporary denial-of-service (DoS) condition affecting th…
- 6.5CVE-2026-3870EPSS 0.2%
A buffer overflow vulnerability in the UPnP AddPortMapping() command in Zyxel VMG4005-B50B firmware versions through 5.13(ABRL.5.4)C0 could allow an adjacent attacker to trigger a temporary denial-of-service (DoS) condition affecting the U…
- 8.8CVE-2026-25277EPSS 0.07%
Memory corruption while using Strongbox due to buffer overflow.
- 7.8CVE-2026-28580EPSS 0.07%
In multiple functions, there is a possible desync in persistence due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploita…
- 3.3CVE-2026-0056EPSS 0.1%
In setTo of ResourceTypes.cpp, there is a possible read out of bounds due to an incorrect bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for expl…
- 8.6CVE-2018-25432EPSS 0.2%
Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting the structured exception handler. Attackers can craft a malicious input file with a 672-byte offset to overwrite t…
- 1.3CVE-2026-10275EPSS 0.3%
A flaw has been found in OpenSC up to 0.26.1. This affects the function test_kpgen_certwrite of the file src/tools/pkcs11-tool.c of the component pkcs11-tool Key Generation Module. This manipulation causes buffer overflow. The attack is po…
- 7.4CVE-2026-10164EPSS 0.5%
A vulnerability was found in Edimax BR-6478AC 1.23. Impacted is the function formUSBFolder of the file /goform/formUSBFolder of the component POST Request Handler. The manipulation of the argument ShareName/SelectName results in buffer ove…
- 7.4CVE-2026-10163EPSS 0.5%
A vulnerability has been found in Edimax BR-6478AC 1.23. This issue affects the function formUSBAccount of the file /goform/formUSBAccount of the component POST Request Handler. The manipulation of the argument UserName/Password leads to b…
- 7.4CVE-2026-10126EPSS 0.8%
A security flaw has been discovered in Edimax BR-6478AC 1.23. Affected by this issue is the function formQoS of the file /goform/formQoS of the component POST Request Handler. The manipulation of the argument selSSID results in buffer over…
- 8.7CVE-2018-25426EPSS 0.5%
WinMTR 0.91 contains a denial of service vulnerability that allows attackers to crash the application by sending a malformed payload file containing a large buffer of repeated characters. Attackers can create a specially crafted input file…
- 6.9CVE-2018-25423EPSS 0.1%
Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a malicious buffer of 700 bytes into the IP address or domain input fi…
- 7.8CVE-2026-46197EPSS 0.1%
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: validate SVM ioctl nattr against buffer size Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribu…
- 7.8CVE-2026-46145EPSS 0.1%
In the Linux kernel, the following vulnerability has been resolved: RDMA/mana: Validate rx_hash_key_len Sashiko points out that rx_hash_key_len comes from a uAPI structure and is blindly passed to memcpy, allowing the userspace to trash …
- 7.3CVE-2026-38426EPSS 0.6%
Buffer Overflow vulnerability in arendst Tasmota v.15.3.0.3 and before allows a remote attacker to execute arbitrary code via the xdrv_10_scripter.ino, fetch_jpg(), jpg_task.boundary[40], strcpy() function.
- 9.8CVE-2025-12686EPSS 2.8%
Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors.
- 7.4CVE-2026-9627EPSS 0.5%
A security flaw has been discovered in UTT HiPER 1200GW up to 2.5.3-170306. This impacts the function strcpy of the file /goform/setSysAdm of the component Web Management Interface. The manipulation of the argument sysAdmUser/sysAdmPass re…
- 7.8CVE-2026-7454EPSS 0.1%
A maliciously crafted WRL file, when parsed through Autodesk 3ds Max, can force a Memory Corruption vulnerability. A malicious actor can leverage this vulnerability to execute arbitrary code in the context of the current process.
- 7.8CVE-2026-7452EPSS 0.2%
A maliciously crafted WRL file, when parsed through Autodesk 3ds Max, can force a Memory Corruption vulnerability. A malicious actor can leverage this vulnerability to execute arbitrary code in the context of the current process.
- 6.2CVE-2026-48696EPSS 0.1%
FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689.
- 9.8CVE-2026-48686EPSS 0.6%
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…
- 8.6CVE-2018-25377EPSS 0.2%
Flash Slideshow Maker Professional 5.20 contains a buffer overflow vulnerability in the registration dialog that allows local attackers to execute arbitrary code by exploiting structured exception handling. Attackers can craft a malicious …
- 8.6CVE-2018-25376EPSS 0.2%
Socusoft 3GP Photo Slideshow 8.05 contains a buffer overflow vulnerability in the registration dialog that allows local attackers to execute arbitrary code by exploiting structured exception handling. Attackers can craft malicious input in…