# There's a libcurl.dll in my system32

DevFeed: [There's a libcurl.dll in my system32](<https://devfeed.tech/articles/there-s-a-libcurl-dll-in-my-system32-18903.md>)

Original publisher: [Read original article](<https://daniel.haxx.se/blog/2026/08/17/theres-a-libcurl-dll-in-my-system32/>)

Author: Daniel Stenberg

Published: 2026-08-17T21:27:36Z

Content type: opinion

Language: en

Sources: [Daniel Stenberg](<https://devfeed.tech/sources/daniel-stenberg.md>)

Topics: [cURL](<https://devfeed.tech/topics/curl.md>), [Windows](<https://devfeed.tech/topics/windows.md>), [Vulnerabilities](<https://devfeed.tech/topics/vulnerabilities.md>), [Library](<https://devfeed.tech/topics/library.md>)

Tags: [curl](<https://devfeed.tech/tags/curl.md>), [curl-and-libcurl](<https://devfeed.tech/tags/curl-and-libcurl.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>), [vulnerability-scanner](<https://devfeed.tech/tags/vulnerability-scanner.md>), [windows](<https://devfeed.tech/tags/windows.md>)

## AI overview

The article explains why a vulnerable libcurl.dll found in Windows System32 cannot safely be upgraded generically. Different Windows applications may install or build libcurl separately, so the application owner must identify and update the specific DLL.

## Source excerpt

This afternoon I had a meeting with IT people at a huge US power infrastructure company. They had found a libcurl.dll file in their C:\Windows\System32 directory and asked us for help to upgrade it. Their vulnerability scanner identified it as vulnerable to several publicly known vulnerabilities. Can we bump it to the latest version please? ... Continue reading There's a libcurl.dll in my system32 ->