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CWE-120

4,417 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 (4,417)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
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Jul 23, 2026
May 22, 2026
N/A· v4
7.3 HIGH· v3
N/A· v2
Buffer Overflow vulnerability in Easy Chat Server 3.1 allows a remote attacker to obtain sensitive information and execute arbitrary code via the chat message functionality
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Jul 23, 2026
May 21, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
Buffer Overflow vulnerability in Uncrustify Project Affected v.Uncrustify_d-0.82.0-132-bcc41cbdc and Fixed in commit 68e67b9a1435a1bb173b106fedb4a4f510972bdc allows a local attacker to cause a denial of service via the c...Show more
Buffer Overflow vulnerability in Uncrustify Project Affected v.Uncrustify_d-0.82.0-132-bcc41cbdc and Fixed in commit 68e67b9a1435a1bb173b106fedb4a4f510972bdc allows a local attacker to cause a denial of service via the check_template.cpp, check_template function, tokenize_cleanup function, uncrustify executable componentsShow less
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Jul 24, 2026
May 19, 2026
N/A· v4
7.1 HIGH· v3
N/A· v2
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and below contain a heap buffer overflow in MaskImageCodec::decode_mask_image(). When decoding a HEIF file containing a mask image (mski), the f...Show more
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and below contain a heap buffer overflow in MaskImageCodec::decode_mask_image(). When decoding a HEIF file containing a mask image (mski), the function copies the full iloc extent data into a pixel buffer using memcpy(dst, data.data(), data.size()). The copy length data.size() is determined by the iloc extent in the file (attacker-controlled), while the destination buffer is sized based on the declared image dimensions. Because no upper-bound check exists on the data length, a crafted file whose iloc extent exceeds the pixel buffer allocation overflows the heap. The vulnerable single-memcpy branch is reached when the mskC property specifies bits_per_pixel = 8 and the ispe property declares an even width ≥ 64 (so that stride == width), with no changes to default security limits or external codec plugins required. This issue has been fixed in version 1.22.0.Show less
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Jun 17, 2026
May 18, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pp...Show more
A vulnerability has been found in Edimax BR-6428NS 1.10. This vulnerability affects the function formPPTPSetup of the file /goform/formPPTPSetup of the component POST Request Handler. Such manipulation of the argument pptpUserName leads to buffer overflow. It is possible to launch the attack 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
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Jun 17, 2026
May 18, 2026
7.4 HIGH· v4
8.8 HIGH· v3
9.0 HIGH· v2
A flaw has been found in Edimax BR-6428NS 1.10. This affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. This manipulation of the argument L2TPUserName causes buffe...Show more
A flaw has been found in Edimax BR-6428NS 1.10. This affects the function formL2TPSetup of the file /goform/formL2TPSetup of the component POST Request Handler. This manipulation of the argument L2TPUserName causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
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Jun 17, 2026
May 17, 2026
7.3 HIGH· v4
7.2 HIGH· v3
8.3 HIGH· v2
A security vulnerability has been detected in H3C Magic B3 up to 100R002. This affects the function UpdateWanParams of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attac...Show more
A security vulnerability has been detected in H3C Magic B3 up to 100R002. This affects the function UpdateWanParams of the file /goform/aspForm. Such manipulation of the argument param leads to buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.Show less
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May 18, 2026
May 17, 2026
8.6 HIGH· v4
8.4 HIGH· v3
N/A· v2
VX Search 10.6.18 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying an oversized string in the directory field. Attackers can craft a malicious input f...Show more
VX Search 10.6.18 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying an oversized string in the directory field. Attackers can craft a malicious input file containing 271 bytes of junk data followed by a return address to execute arbitrary code with application privileges.Show less
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May 18, 2026
May 17, 2026
8.6 HIGH· v4
8.4 HIGH· v3
N/A· v2
Allok AVI DivX MPEG to DVD Converter 2.6.1217 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can cr...Show more
Allok AVI DivX MPEG to DVD Converter 2.6.1217 contains a structured exception handler buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying a malicious payload. Attackers can craft a text file with a specially crafted buffer containing shellcode and SEH chain overwrite values, then paste the contents into the License Name field to trigger code execution.Show less
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Jun 17, 2026
May 16, 2026
6.9 MEDIUM· v4
6.2 MEDIUM· v3
N/A· v2
Internet Download Manager 6.38.12 contains a buffer overflow vulnerability in the Scheduler component that allows local attackers to crash the application by supplying oversized input. Attackers can paste malicious data...Show more
Internet Download Manager 6.38.12 contains a buffer overflow vulnerability in the Scheduler component that allows local attackers to crash the application by supplying oversized input. Attackers can paste malicious data exceeding 5000 bytes into the 'Open the following file when done' field to trigger a denial of service condition.Show less
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Jun 17, 2026
May 15, 2026
6.8 MEDIUM· v4
N/A· v3
N/A· v2
A buffer overflow vulnerability within AMD Sensor Fusion Hub Driver can allow a local attacker to write out of bounds, potentially resulting in denial of service or crash
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Jun 17, 2026
May 15, 2026
6.9 MEDIUM· v4
N/A· v3
N/A· v2
Improper Input validation in the AMD Secure Processor (ASP) PCI driver may allow a local attacker to create a buffer overflow condition, potentially resulting in a crash or denial of service
1Postgresql
1Postgresql
Aug 25, 2026
May 14, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack buffer with...Show more
Use of inherently dangerous function PQfn(..., result_is_int=0, ...) in PostgreSQL libpq lo_export(), lo_read(), lo_lseek64(), and lo_tell64() functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets(), PQfn(..., result_is_int=0, ...) stores arbitrary-length, server-determined data into a buffer of unspecified size. Because both the \lo_export command in psql and pg_dump call lo_read(), the server superuser can overwrite pg_dump or psql stack memory. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.Show less
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Jun 17, 2026
May 13, 2026
N/A· v4
6.2 MEDIUM· v3
N/A· v2
Buffer Overflow vulnerability in Ardupilot rover commit v.c56439b045162058df0ff136afea3081fcd06d38 allows a local attacker to cause a denial of service via the AP_InertialSensor_ADIS1647x.cpp, ArduRover, ADIS1647x Sensor...Show more
Buffer Overflow vulnerability in Ardupilot rover commit v.c56439b045162058df0ff136afea3081fcd06d38 allows a local attacker to cause a denial of service via the AP_InertialSensor_ADIS1647x.cpp, ArduRover, ADIS1647x Sensor component.Show less
1F5
1Big Ip Access Policy Manager
Jun 29, 2026
May 13, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
When a BIG-IP APM access policy is configured on a virtual server, undisclosed traffic can cause the apmd process to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluat...Show more
When a BIG-IP APM access policy is configured on a virtual server, undisclosed traffic can cause the apmd process to terminate.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.Show less
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Jun 17, 2026
May 13, 2026
N/A· v4
5.6 MEDIUM· v3
N/A· v2
NXP moal.ko Wi-Fi driver 5.1.7.10 FW version from v17.92.1.p149.43 To v17.92.1.p149.157 was discovered to contain a buffer overflow via the mod_para parameter in the woal_init_module_param function.
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Jun 17, 2026
May 13, 2026
N/A· v4
7.3 HIGH· v3
N/A· v2
Firmament-Autopilot FMT-Firmware commit de5aec was discovered to contain a buffer overflow via the task_mavobc_entry function at /comm/task_comm.c.
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Jun 17, 2026
May 12, 2026
9.3 CRITICAL· v4
N/A· v3
N/A· v2
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 u...Show more
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 low complexity attack may enable local code execution. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (high), integrity (high) and availability (high) impacts.Show less
1Intel
1Quickassist Technology
Jun 17, 2026
May 12, 2026
6.9 MEDIUM· v4
6.6 MEDIUM· v3
N/A· v2
Buffer overflow for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined w...Show more
Buffer overflow for some Intel(R) QAT software drivers for Windows before version 1.13 within Ring 3: User Applications may allow a denial of service. Unprivileged software adversary with an authenticated user combined with a low complexity attack may enable denial of service. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (low), integrity (low) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.Show less
1Zyxel
1Nwa1100 N Firmware
Jun 17, 2026
May 12, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
** UNSUPPORTED WHEN ASSIGNED ** A buffer overflow vulnerability in the formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() functions of the “webs” binary in Zyxel NWA1100-N customized firmwar...Show more
** UNSUPPORTED WHEN ASSIGNED ** A buffer overflow vulnerability in the formWep(), formWlAc(), formPasswordSetup(), formUpgradeCert(), and formDelcert() functions of the “webs” binary in Zyxel NWA1100-N customized firmware version 1.00(AACE.1)C0 could allow an attacker to trigger a denial-of-service (DoS) condition by sending a crafted HTTP request to a vulnerable device.Show less
1Apple
6Ipados
Iphone OsMacos+3 more
Aug 17, 2026
May 11, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing ma...Show more
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.Show less