libplctag up to 2.6.3 conn.c unpack_response out-of-bounds

Summaryinfo

A vulnerability marked as problematic has been reported in libplctag up to 2.6.3. This affects the function unpack_response of the file conn.c. Performing a manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2025-1400. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in libplctag up to 2.6.3. It has been classified as problematic. This affects the function unpack_response of the file conn.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality. The summary by CVE is:

Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

The weakness was shared by Gabriele Quagliarella. The advisory is shared at nozominetworks.com. This vulnerability is uniquely identified as CVE-2025-1400 since 02/17/2025. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• libplctag

Version

• 2.6.0
• 2.6.1
• 2.6.2
• 2.6.3

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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