Hello Aspirant,Hope you are doing good

The details that can be changed when the correction window will open in CUCET are

• Photo of the candidate
• Signature of the candidate
• Class X certificate
• Father’s Name
• Mother’s Name
• Employment Details of Mother/ Father
• Choice of University and Course
• Language of the Paper
• PwBD Certificates (if applicable)

Therefore,You can change the picture of the signature.Basically the correction window will be opened after application process ends(May 6,2022).Officially no exact details regarding the date of the opening of Correction window were declared.

For further details visit this

https://www.careers360.com/exams/cuet#:~:text=About%20CUET%202022&text=The%20last%20date%20to%20fill,exam%20will%20be

Hope this information helps you

ALL THE BEST