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CWE-120

4,201 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 (4,201)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Zerbea
1Hcxtools
Apr 2, 2026
Mar 26, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
Buffer Overflow vulnerability in ZerBea hcxpcapngtool v. 7.0.1-43-g2ee308e allows a local attacker to obtain sensitive information via the getradiotapfield() function
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Apr 24, 2026
Mar 26, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
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 mani...Show more
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 argument GroupName leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.Show less
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Mar 25, 2026
Mar 25, 2026
N/A· v4
7.2 HIGH· v3
N/A· v2
A buffer overflow vulnerability in the dgiot binary in LSC Smart Indoor IP Camera V7.6.32. The flaw exists in the handling of the Time Zone (TZ) parameter within the ONVIF configuration interface. The time zone (TZ) para...Show more
A buffer overflow vulnerability in the dgiot binary in LSC Smart Indoor IP Camera V7.6.32. The flaw exists in the handling of the Time Zone (TZ) parameter within the ONVIF configuration interface. The time zone (TZ) parameter does not have its length properly validated before being copied into a fixed-size buffer using the insecure strcpy function.Show less
1Apple
2Ipados
Iphone Os
Mar 25, 2026
Mar 25, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote attacker may be able to cause a denial-of-service.
1Apple
2Ipados
Iphone Os
Mar 26, 2026
Mar 25, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.
1Apple
1Macos
Mar 26, 2026
Mar 25, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
The issue was addressed with improved bounds checks. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
1Apple
1Macos
Mar 25, 2026
Mar 25, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Tahoe 26.4. A buffer overflow may result in memory corruption and unexpected app termination.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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....Show more
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 was fixed in Firefox 149 and Thunderbird 149.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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...Show more
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 have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.Show less
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Mar 24, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
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...Show more
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 to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.Show less
1Mozilla
1Firefox
Apr 13, 2026
Mar 24, 2026
N/A· v4
8.6 HIGH· v3
N/A· v2
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.
1Mozilla
2Firefox
Thunderbird
Apr 13, 2026
Mar 24, 2026
N/A· v4
10.0 CRITICAL· v3
N/A· v2
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.
1Mozilla
1Firefox
Apr 13, 2026
Mar 24, 2026
N/A· v4
8.6 HIGH· v3
N/A· v2
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.
1Xnview
1Nconvert
Mar 26, 2026
Mar 23, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
XnSoft NConvert 7.230 is vulnerable to Stack Buffer Overrun via a crafted .tiff file.
1Tenda
1Ac21 Firmware
Apr 3, 2026
Mar 23, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
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...Show more
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 remotely. The exploit is now public and may be used.Show less
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Apr 22, 2026
Mar 20, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was identified in UTT HiPER 1250GW up to 3.2.7-210907-180535. Affected is the function strcpy of the file /goform/setSysAdm. Such manipulation of the argument GroupName leads to buffer overflow. It is pos...Show more
A vulnerability was identified in UTT HiPER 1250GW up to 3.2.7-210907-180535. Affected is the function strcpy of the file /goform/setSysAdm. Such manipulation of the argument GroupName leads to buffer overflow. It is possible to launch the attack remotely. The exploit is publicly available and might be used.Show less
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Apr 22, 2026
Mar 20, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in UTT HiPER 1200GW up to 2.5.3-170306. This impacts the function strcpy of the file /goform/websHostFilter. This manipulation causes buffer overflow. It is possible to initiate the attack...Show more
A vulnerability was determined in UTT HiPER 1200GW up to 2.5.3-170306. This impacts the function strcpy of the file /goform/websHostFilter. This manipulation causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.Show less
1Invisible Island
1Ncurses
Jun 2, 2026
Mar 19, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
The infocmp command-line tool in ncurses before 6.5-20251213 has a stack-based buffer overflow in analyze_string in progs/infocmp.c.
1Pyopenssl
1Pyopenssl
Mar 25, 2026
Mar 18, 2026
7.2 HIGH· v4
9.8 CRITICAL· v3
N/A· v2
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 byt...Show more
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.Show less
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Apr 22, 2026
Mar 17, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formApLbConfig. This manipulation of the argument loadBalanceNameOld causes buffer overflow. The at...Show more
A vulnerability was determined in UTT HiPER 810G up to 1.7.7-171114. Affected is the function strcpy of the file /goform/formApLbConfig. This manipulation of the argument loadBalanceNameOld causes buffer overflow. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized.Show less