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CWE-120

4,537 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 (4,537)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
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Oct 22, 2026
Oct 22, 2026
9.5 CRITICAL· v4
N/A· v3
N/A· v2
EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability can...Show more
EDK2 contains a vulnerability in BIOS where a user may cause “Out-of-bounds Write”, Classic Buffer Overflow, and “Incorrect Calculation of Buffer Size” by remote access. Successful exploitation of this vulnerability can lead to arbitrary code execution. It could also impact Confidentiality, Integrity, and Availability.Show less
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Oct 22, 2026
Oct 21, 2026
8.6 HIGH· v4
9.9 CRITICAL· v3
9.0 HIGH· v2
A flaw has been found in Tenda BE3L Pro 16.03.60.62. Affected by this vulnerability is the function formWifiBasicSet of the file /goform/WifiBasicSet. This manipulation of the argument security_5g causes buffer overflow....Show more
A flaw has been found in Tenda BE3L Pro 16.03.60.62. Affected by this vulnerability is the function formWifiBasicSet of the file /goform/WifiBasicSet. This manipulation of the argument security_5g causes buffer overflow. It is possible to initiate the attack remotely. The exploit has been published and may be used.Show less
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Oct 22, 2026
Oct 20, 2026
6.8 MEDIUM· v4
5.5 MEDIUM· v3
N/A· v2
The PEAK-System PCAN diagnostic call did not validate that the caller-supplied output buffer was large enough to hold the output record.
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Oct 20, 2026
Oct 20, 2026
7.5 HIGH· v4
N/A· v3
N/A· v2
A buffer overflow vulnerability in the password verification functionality could allow an attacker with guest authentication to achieve code execution.
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Oct 19, 2026
Oct 19, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
IBM MQ could allow an authenticated attacker to cause a denial of service due to improper validation of offset values in MQOPEN requests.
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Oct 19, 2026
Oct 19, 2026
N/A· v4
5.9 MEDIUM· v3
N/A· v2
IBM MQ could allow a remote attacker with queue manager control or man-in-the-middle access on unencrypted channels to cause a denial of service in client applications using asynchronous message consumption due to improp...Show more
IBM MQ could allow a remote attacker with queue manager control or man-in-the-middle access on unencrypted channels to cause a denial of service in client applications using asynchronous message consumption due to improper validation of queue name length values.Show less
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Oct 22, 2026
Oct 19, 2026
2.1 LOW· v4
6.3 MEDIUM· v3
7.5 HIGH· v2
A vulnerability was determined in ztxz16 fastllm up to 0.1.8.2. This impacts the function GGUFBuffer::ReadString of the file third_party/gguf/gguf.cpp of the component String Parsing. This manipulation of the argument le...Show more
A vulnerability was determined in ztxz16 fastllm up to 0.1.8.2. This impacts the function GGUFBuffer::ReadString of the file third_party/gguf/gguf.cpp of the component String Parsing. This manipulation of the argument len causes buffer overflow. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.Show less
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Oct 19, 2026
Oct 19, 2026
2.1 LOW· v4
6.3 MEDIUM· v3
7.5 HIGH· v2
A flaw has been found in ztxz16 fastllm up to 1.8.2. Affected by this issue is the function SafeTensorItem::CreateBuffer of the file src/model.cpp of the component Safetensors Weight Loading. This manipulation of the arg...Show more
A flaw has been found in ztxz16 fastllm up to 1.8.2. Affected by this issue is the function SafeTensorItem::CreateBuffer of the file src/model.cpp of the component Safetensors Weight Loading. This manipulation of the argument data_offsets causes buffer overflow. The attack can be initiated remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.Show less
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Oct 16, 2026
Oct 16, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. Prior to 2026.04, the ATWINC15x0 driver's _atwinc15x0_sta_set_current_ssid function uses strcpy...Show more
RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. Prior to 2026.04, the ATWINC15x0 driver's _atwinc15x0_sta_set_current_ssid function uses strcpy to copy an SSID without checking the destination size. When MODULE_ATWINC15X0_DYNAMIC_CONNECT is enabled, a nearby attacker can advertise a malformed or oversized SSID that is processed during Wi-Fi scanning, causing memory corruption and potentially a hard fault, denial of service, or code execution. This issue is fixed in version 2026.04.Show less
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Oct 21, 2026
Oct 16, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Buffer Overflow vulnerability in WEINVEIW CO.,LTD EBPro v.6.10.01.510_20251022 allows a remote attacker to execute arbitrary code via the UtilityManagerEx.exe component
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Oct 19, 2026
Oct 15, 2026
2.3 LOW· v4
N/A· v3
N/A· v2
A buffer copy without checking size of input 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...Show more
A buffer copy without checking size of input 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 and laterShow less
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Oct 16, 2026
Oct 15, 2026
8.7 HIGH· v4
7.5 HIGH· v3
N/A· v2
SODOLA SL902-SWTGW124AS firmware before 200.2.12 contains a buffer overflow vulnerability that allows unauthenticated remote attackers to cause a denial of service by sending an oversized boundary value in the Content-Ty...Show more
SODOLA SL902-SWTGW124AS firmware before 200.2.12 contains a buffer overflow vulnerability that allows unauthenticated remote attackers to cause a denial of service by sending an oversized boundary value in the Content-Type header of a crafted POST request. Attackers can exploit the embedded HTTP server's multipart/form-data boundary parser to cause the device to become fully unresponsive — dropping all management access and traffic forwarding during its self-recovery cycle.Show less
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Oct 15, 2026
Oct 14, 2026
2.1 LOW· v4
6.3 MEDIUM· v3
7.5 HIGH· v2
A vulnerability was detected in turboderp ExLlamaV2 up to 0.3.2. Affected is the function STFile.get_tensor of the file exllamav2/stloader.py of the component Safetensors Tensor Loader. Performing a manipulation of the a...Show more
A vulnerability was detected in turboderp ExLlamaV2 up to 0.3.2. Affected is the function STFile.get_tensor of the file exllamav2/stloader.py of the component Safetensors Tensor Loader. Performing a manipulation of the argument data_offsets results in buffer overflow. The attack is possible to be carried out remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.Show less
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Oct 16, 2026
Oct 14, 2026
8.7 HIGH· v4
8.8 HIGH· v3
N/A· v2
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or co...Show more
A Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in the SDK service process of Juniper Networks Junos OS allows an unauthenticated network attacker to cause a denial of service or compromise the Routing Engine by sending specific packets when the SDK service and a JDAF routing instance are enabled.Show less
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Oct 20, 2026
Oct 14, 2026
5.5 MEDIUM· v4
8.3 HIGH· v3
7.5 HIGH· v2
A vulnerability was found in PCMan FTP Server up to 2.0.7. This affects an unknown function of the component PORT Command Handler. The manipulation results in buffer overflow. The attack can be launched remotely. The exp...Show more
A vulnerability was found in PCMan FTP Server up to 2.0.7. This affects an unknown function of the component PORT Command Handler. The manipulation results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used.Show less
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Oct 16, 2026
Oct 13, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Buffer Overflow vulnerability in madmurphy libconfini v.1.16.4 allows a remote attacker to cause a denial of service via an allocation-size mismatch between its bundled load_ini_buffer utility and strip_ini_cache()
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Oct 14, 2026
Oct 13, 2026
N/A· v4
8.0 HIGH· v3
N/A· v2
Buffer overflow in a Zoom Phone feature of Zoom Workplace Clients may allow an unauthenticated user to conduct a escalation of privilege via network access.
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Oct 16, 2026
Oct 13, 2026
8.2 HIGH· v4
N/A· v3
N/A· v2
AMI APTIOV contains vulnerabilities in BIOS where users may cause  “Classic Buffer Overflow” by local access. Successful exploitation of this vulnerability could lead to buffer overflows, memory corruption, and arbitrary...Show more
AMI APTIOV contains vulnerabilities in BIOS where users may cause  “Classic Buffer Overflow” by local access. Successful exploitation of this vulnerability could lead to buffer overflows, memory corruption, and arbitrary code execution, and also impact Confidentiality, Integrity, and Availability.Show less
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Oct 14, 2026
Oct 13, 2026
2.1 LOW· v4
6.3 MEDIUM· v3
7.5 HIGH· v2
A vulnerability was found in k2-fsa sherpa-onnx up to 1.13.8. This issue affects the function OfflineTransducerGreedySearchDecoder::Decode of the file sherpa-onnx/csrc/offline-transducer-greedy-search-decoder.cc of the c...Show more
A vulnerability was found in k2-fsa sherpa-onnx up to 1.13.8. This issue affects the function OfflineTransducerGreedySearchDecoder::Decode of the file sherpa-onnx/csrc/offline-transducer-greedy-search-decoder.cc of the component Offline Transducer Greedy Search Decoder. The manipulation of the argument vocab_size results in buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used. If only official model packs are used and they always keep metadata consistent with the joiner, the bug may not be reachable in normal supported usage. However, from a security and robustness standpoint, the code still contains the vulnerability because it trusts unvalidated model metadata and can be triggered by a malformed or tampered model pack.Show less
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Oct 13, 2026
Oct 12, 2026
8.6 HIGH· v4
9.9 CRITICAL· v3
9.0 HIGH· v2
A vulnerability has been found in Edimax BR-6208AC 1.32. This affects an unknown part of the file /goform/formWlanMP. Such manipulation of the argument ateBW leads to buffer overflow. The attack can be executed remotely....Show more
A vulnerability has been found in Edimax BR-6208AC 1.32. This affects an unknown part of the file /goform/formWlanMP. Such manipulation of the argument ateBW 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. This vulnerability only affects products that are no longer supported by the maintainer.Show less