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CWE-476

5,440 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

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CVEs (5,440)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Swftools
1Swftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function Lexer::Lexer() located in Lexer.cc. It allows an attacker to cause Denial of Service.
1Swftools
1Swftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function grealloc() located in gmem.cc. It allows an attacker to cause Denial of Service.
1Sela Project
1Sela
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in sela through 20200412. A NULL pointer dereference exists in the function file::WavFile::WavFile() located in wav_file.c. It allows an attacker to cause Denial of Service.
1Sela Project
1Sela
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in sela through 20200412. A NULL pointer dereference exists in the function frame::FrameDecoder::process() located in frame_decoder.c. It allows an attacker to cause Denial of Service.
1Sela Project
1Sela
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in sela through 20200412. A NULL pointer dereference exists in the function lpc::SampleGenerator::process() located in sample_generator.cpp. It allows an attacker to cause Denial of Service.
1Sela Project
1Sela
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in sela through 20200412. A NULL pointer dereference exists in the function rice::RiceDecoder::process() located in rice_decoder.c. It allows an attacker to cause Denial of Service.
1Pdftools Project
1Pdftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function Analyze::AnalyzeRoot() located in analyze.cpp. It allows an attacker to cause Denial of Service.
1Pdftools Project
1Pdftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function Font::Size() located in font.cpp. It allows an attacker to cause Denial of Service.
1Pdftools Project
1Pdftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function Analyze::AnalyzeXref() located in analyze.cpp. It allows an attacker to cause Denial of Service.
1Pdftools Project
1Pdftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function node::BDCNode::~BDCNode() located in bdcnode.cpp. It allows an attacker to cause Denial of Service.
1Pdftools Project
1Pdftools
Jun 17, 2026
Sep 20, 2021
N/A· v4
5.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in pdftools through 20200714. A NULL pointer dereference exists in the function node::ObjNode::Value() located in objnode.cpp. It allows an attacker to cause Denial of Service.
1Libxsmm Project
1Libxsmm
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libxsmm through v1.16.1-93. A NULL pointer dereference exists in JIT code. It allows an attacker to cause Denial of Service.
1Juniper
1Libslax
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libslax through v0.22.1. A NULL pointer dereference exists in the function slaxLexer() located in slaxlexer.c. It allows an attacker to cause Denial of Service.
1Gnu
1Libredwg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function check_POLYLINE_handles() located in decode.c. It allows an attacker to cause Denial of Service.
1Gnu
1Libredwg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libredwg through v0.10.1.3751. A NULL pointer dereference exists in the function bit_read_BB() located in bits.c. It allows an attacker to cause Denial of Service.
1Jpeg
1Libjpeg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData() located in blockbitmaprequester.cpp. It allows an attacker to cause Deni...Show more
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PushReconstructedData() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.Show less
1Jpeg
1Libjpeg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PullQData() located in blockbitmaprequester.cpp It allows an attacker to cause Denial of Service...Show more
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::PullQData() located in blockbitmaprequester.cpp It allows an attacker to cause Denial of Service.Show less
1Jpeg
1Libjpeg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::ReconstructUnsampled() located in blockbitmaprequester.cpp. It allows an attacker to cause Denia...Show more
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function BlockBitmapRequester::ReconstructUnsampled() located in blockbitmaprequester.cpp. It allows an attacker to cause Denial of Service.Show less
1Jpeg
1Libjpeg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function HuffmanDecoder::Get() located in huffmandecoder.hpp. It allows an attacker to cause Denial of Service.
1Jpeg
1Libjpeg
Jun 17, 2026
Sep 20, 2021
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function SampleInterleavedLSScan::ParseMCU() located in sampleinterleavedlsscan.cpp. It allows an attacker to cause Denial of S...Show more
An issue was discovered in libjpeg through 2020021. A NULL pointer dereference exists in the function SampleInterleavedLSScan::ParseMCU() located in sampleinterleavedlsscan.cpp. It allows an attacker to cause Denial of Service.Show less