PT-2026-38579 · Microsoft · Teams

Adi Ivascu · Published 2026-05-07 · Updated 2026-06-11 · CVE-2026-33823

Positive Technologies (AI Summary)

CVSS v3.1

9.6

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Teams (affected versions not specified)

Description Improper authorization in Microsoft Teams allows an authorized attacker to disclose information over a network.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

BDU:2026-06841

CVE-2026-33823

Affected Products

Teams

References · 20

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33823 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06841 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-33823 · Security Note
• https://t.me/CVEtracker/53029 · Telegram Post
• https://twitter.com/cybrsecpath/status/2053428422324650312 · Twitter Post
• https://twitter.com/lyrie_ai/status/2064668023789584711 · Twitter Post
• https://twitter.com/VigneshVic23698/status/2054071756009439239 · Twitter Post
• https://twitter.com/lyrie_ai/status/2064939746439135347 · Twitter Post
• https://twitter.com/lyrie_ai/status/2054060544764608764 · Twitter Post
• https://twitter.com/SelvaKtm2/status/2053146162052702627 · Twitter Post
• https://twitter.com/lyrie_ai/status/2064668026004197789 · Twitter Post
• https://twitter.com/CVEnew/status/2053559199804629312 · Twitter Post
• https://twitter.com/UpwindMDR/status/2052682554738622624 · Twitter Post
• https://reddit.com/r/Information_Security/comments/1t82ocs/heads_up_microsoft_teams_cve202633823_is_rated_96 · Reddit Post
• https://twitter.com/lyrie_ai/status/2064668024859148530 · Twitter Post