What is CVE-2023-22473?

CVE-2023-22473 is a low-severity vulnerability in Nextcloud Security-Advisories, classified under Improper Access Control. CVSS score: 2.1/10. Published 2023-01-09.

How severe is CVE-2023-22473?

Low severity. CVSS v3 base score is 2.1 out of 10.

Vulnerability in Nextcloud Security-Advisories

CVE-2023-22473

Talk-Android enables users to have video & audio calls through Nextcloud on Android. Due to passcode bypass, an attacker is able to access the user's Nextcloud files and view conversations. To exploit this the attacker needs to have physical access to the target's device. There are currently no known workarounds available. It is recommended that the Nextcloud Talk Android app is upgraded to 15.0.2.

Published 2023-01-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.1 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Nextcloud Security-Advisories — versions < 15.0.2
Nextcloud Talk

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

github.com/nextcloud/security-advisories/security/advisories/GHSA-wvr4-gc4c-6vmx (Third Party Advisory)
github.com/nextcloud/talk-android/pull/2598 (Patch, Third Party Advisory)
hackerone.com/reports/1784645 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-22473?: CVE-2023-22473 is a low-severity vulnerability in Nextcloud Security-Advisories, classified under Improper Access Control. CVSS score: 2.1/10. Published 2023-01-09.
How severe is CVE-2023-22473?: Low severity. CVSS v3 base score is 2.1 out of 10.