VULNERABILITY INTELLIGENCE

CVE-2023-33983

CVSS score7.4 HIGH

EPSS probability0.59%

CISA KEVNot currently listed

Published2023-05-24

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Description

The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.

Weakness classification

nvd@nist.gov: CWE-862
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-862

Primary references

cve@mitre.org — Exploit, Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Technical Description, Third Party Advisory