What’s Vulnerable › Vulnerabilities

CVE-2023-2617: OpenCV wechat_qrcode Module decoded_bit_stream_parser.cpp decodeByteSegment null pointer dereference

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-05-10 · updated 2026-06-17
• Weakness: CWE-476

Description

A vulnerability classified as problematic was found in OpenCV wechat_qrcode Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file qrcode/decoder/decoded_bit_stream_parser.cpp. The manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-228547.

Affected products

• OpenCV 3.0.0: from 4.5.2 through 4.7.0

References

• https://gist.github.com/GZTimeWalker/3ca70a8af2f5830711e9cccc73fb5270
• https://github.com/opencv/opencv_contrib/pull/3480
• https://vuldb.com/?ctiid.228547
• https://vuldb.com/?id.228547
• https://gist.github.com/GZTimeWalker/3ca70a8af2f5830711e9cccc73fb5270
• https://github.com/opencv/opencv_contrib/pull/3480
• https://vuldb.com/?ctiid.228547
• https://vuldb.com/?id.228547
• https://github.com/opencv/opencv_contrib/pull/3480

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