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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
1Qnap
2Qts
Quts Hero
Feb 11, 2026
Feb 11, 2026
0.6 LOW· v4
8.1 HIGH· v3
N/A· v2
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes....Show more
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: QuTS hero h5.3.2.3354 build 20251225 and laterShow less
1Qnap
1Qsync Central
Feb 11, 2026
Feb 11, 2026
0.6 LOW· v4
8.1 HIGH· v3
N/A· v2
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed th...Show more
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and laterShow less
1Qnap
1Qsync Central
Feb 11, 2026
Feb 11, 2026
0.6 LOW· v4
8.1 HIGH· v3
N/A· v2
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed th...Show more
A buffer overflow vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and laterShow less
1Tenda
1Ac8 Firmware
Feb 10, 2026
Feb 9, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A flaw has been found in Tenda AC8 16.03.33.05. Affected by this vulnerability is an unknown functionality of the file /goform/fast_setting_wifi_set of the component Embedded Httpd Service. This manipulation of the argum...Show more
A flaw has been found in Tenda AC8 16.03.33.05. Affected by this vulnerability is an unknown functionality of the file /goform/fast_setting_wifi_set of the component Embedded Httpd Service. This manipulation of the argument timeZone causes buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.Show less
1Tenda
1Ac8 Firmware
Feb 10, 2026
Feb 9, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was detected in Tenda AC8 16.03.33.05. Affected is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet of the component httpd. The manipulation of the argument shareSpeed results in buffer...Show more
A vulnerability was detected in Tenda AC8 16.03.33.05. Affected is the function fromSetWifiGusetBasic of the file /goform/WifiGuestSet of the component httpd. The manipulation of the argument shareSpeed results in buffer overflow. The attack may be launched remotely. The exploit is now public and may be used.Show less
1Tenda
1Tx9 Firmware
Feb 10, 2026
Feb 8, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer ove...Show more
A vulnerability was identified in Tenda TX9 up to 22.03.02.10_multi. Affected by this issue is the function sub_4223E0 of the file /goform/setMacFilterCfg. Such manipulation of the argument deviceList leads to buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used.Show less
1Tenda
1Tx9 Firmware
Feb 10, 2026
Feb 8, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was determined in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buff...Show more
A vulnerability was determined in Tenda TX9 up to 22.03.02.10_multi. Affected by this vulnerability is the function sub_432580 of the file /goform/fast_setting_wifi_set. This manipulation of the argument ssid causes buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.Show less
1Tenda
1Tx9 Firmware
Feb 10, 2026
Feb 8, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was found in Tenda TX9 up to 22.03.02.10_multi. Affected is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can...Show more
A vulnerability was found in Tenda TX9 up to 22.03.02.10_multi. Affected is the function sub_42D03C of the file /goform/SetStaticRouteCfg. The manipulation of the argument list results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.Show less
1Tenda
1Tx3 Firmware
Feb 11, 2026
Feb 8, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in Tenda TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be in...Show more
A vulnerability has been found in Tenda TX3 up to 16.03.13.11_multi. This impacts an unknown function of the file /goform/SetIpMacBind. The manipulation of the argument list leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.Show less
1Utt
1810g Firmware
Feb 24, 2026
Feb 7, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was detected in UTT HiPER 810G up to 1.7.7-171114. Affected by this vulnerability is the function strcpy of the file /goform/formFireWall of the component Management Interface. The manipulation of the arg...Show more
A vulnerability was detected in UTT HiPER 810G up to 1.7.7-171114. Affected by this vulnerability is the function strcpy of the file /goform/formFireWall of the component Management Interface. The manipulation of the argument GroupName results in buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Utt
1520w Firmware
Feb 13, 2026
Feb 7, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The...Show more
A vulnerability was found in UTT 进取 520W 1.7.7-180627. The impacted element is the function strcpy of the file /goform/formP2PLimitConfig. Performing a manipulation of the argument except results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
1Raimersoft
1Tapinradio
Feb 19, 2026
Feb 7, 2026
6.7 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
TapinRadio 2.12.3 contains a denial of service vulnerability in the application proxy username configuration that allows local attackers to crash the application. Attackers can overwrite the username field with 10,000 by...Show more
TapinRadio 2.12.3 contains a denial of service vulnerability in the application proxy username configuration that allows local attackers to crash the application. Attackers can overwrite the username field with 10,000 bytes of arbitrary data to trigger an application crash and prevent normal program functionality.Show less
1Raimersoft
1Tapinradio
Feb 19, 2026
Feb 7, 2026
6.7 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
TapinRadio 2.12.3 contains a denial of service vulnerability in the application proxy address configuration that allows local attackers to crash the application. Attackers can overwrite the address field with 3000 bytes...Show more
TapinRadio 2.12.3 contains a denial of service vulnerability in the application proxy address configuration that allows local attackers to crash the application. Attackers can overwrite the address field with 3000 bytes of arbitrary data to trigger an application crash and prevent normal program functionality.Show less
1Celestialsoftware
1Absolutetelnet
Feb 19, 2026
Feb 7, 2026
6.9 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, c...Show more
AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate.Show less
1Celestialsoftware
1Absolutetelnet
Feb 19, 2026
Feb 7, 2026
6.7 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it in...Show more
AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license name field to trigger an application crash.Show less
1Celestialsoftware
1Absolutetelnet
Feb 19, 2026
Feb 7, 2026
6.7 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it in...Show more
AbsoluteTelnet 11.12 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an oversized license name. Attackers can generate a 2500-character payload and paste it into the license entry field to trigger an application crash.Show less
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-
Feb 9, 2026
Feb 7, 2026
6.7 MEDIUM· v4
7.5 HIGH· v3
N/A· v2
Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated '...Show more
Core FTP Lite 1.3 contains a buffer overflow vulnerability in the username input field that allows attackers to crash the application by supplying oversized input. Attackers can generate a 7000-byte payload of repeated 'A' characters to trigger an application crash without requiring additional interaction.Show less
-
-
Feb 9, 2026
Feb 7, 2026
6.7 MEDIUM· v4
7.5 HIGH· v3
N/A· v2
aSc TimeTables 2020.11.4 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Subject title field with a large buffer. Attackers can generate a 1000-character buffe...Show more
aSc TimeTables 2020.11.4 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the Subject title field with a large buffer. Attackers can generate a 1000-character buffer and paste it into the Subject title to trigger an application crash and potential instability.Show less
-
-
Feb 9, 2026
Feb 7, 2026
6.7 MEDIUM· v4
7.5 HIGH· v3
N/A· v2
Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated charac...Show more
Core FTP LE 2.2 contains a denial of service vulnerability that allows attackers to crash the application by overwriting the account field with a large buffer. Attackers can create a text file with 20,000 repeated characters and paste it into the account field to cause the application to become unresponsive and require reinstallation.Show less
1Utt
1520w Firmware
Feb 13, 2026
Feb 6, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the file /goform/formPolicyRouteConf. Such manipulation of the argument GroupName leads to buffer overflow. The a...Show more
A vulnerability has been found in UTT 进取 520W 1.7.7-180627. The affected element is the function strcpy of the file /goform/formPolicyRouteConf. Such manipulation of the argument GroupName leads to buffer overflow. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less