Southeastern Katë is a dialect of the Katë language spoken by the Kom and Kata in parts of Afghanistan and Pakistan. It includes the so-called Kamviri and Mumviri dialects, spoken in Mangul, Sasku and Gabalgrom in the Bashgal Valley.

According to Halfmann (2024), the primary innovations of the Southeastern dialect include secondary vowel length from monophthongization of vowel + v, a progressive suffix -n-, intervocalic consonant lenition (usually sibilants and velars), post-nasal voicing, and merger of Proto-Nuristani pre-tonic *a and *ā as a.

The inventory as described by Richard Strand. In addition, there is stress.

The neutral articulatory posture, as in the reduced vowel /a/, consists of the tip of the tongue behind the lower teeth and a raised tongue root is linked with a raised larynx, producing a characteristic pitch for unstressed vowels of about an octave above the pitch of a relaxed larynx.

One suffix /ti/ voices to [di] for most speakers.

The sequences /ʈɭ/, /ɖɭ/ are phonetically affricates.

Nasals voice a following obstruent.

Laminal consonants change a following /a/ from [ɨ] to [i].