CWE-194— Unexpected Sign Extension
The product performs an operation on a number that causes it to be sign extended when it is transformed into a larger data type. When the original number is negative, this can produce unexpected values that lead to resultant weaknesses.— MITRE CWE catalog
5 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-194page 1 of 1
- CVE-2018-10887HIGHCVSS 8.1EG 8.12018-07-10
A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing t…
- CVE-2020-13544HIGHCVSS 7.8EG 7.82021-01-06
An exploitable sign extension vulnerability exists in the TextMaker document parsing functionality of SoftMaker Office 2021’s TextMaker application. A specially crafted document can cause the document parser to sign-extend a length used …
- CVE-2021-38434HIGHCVSS 7.8EG 7.82021-10-18
FATEK Automation WinProladder versions 3.30 and prior lacks proper validation of user-supplied data when parsing project files, which could result in an unexpected sign extension. An attacker could leverage this vulnerability to execute ar…
- CVE-2022-32138HIGHCVSS 8.8EG 8.82022-06-24
In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.
- CVE-2025-13632MEDIUMCVSS 5.4EG 5.42025-12-02
Inappropriate implementation in DevTools in Google Chrome prior to 143.0.7499.41 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium se…
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