How severe is CVE-2020-0943?

CVE-2020-0943 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-0943 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-0943?

CVE-2020-0943 affects Microsoft Your Phone Companion. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-0943?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-0943 published?

CVE-2020-0943 was published on 2020-04-15 and last updated on 2026-06-17.

CVE-2020-0943

CVE-2020-0943 is a medium-severity vulnerability in Microsoft Your Phone Companion with a CVSS 3.x base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Your Phone Companion
Published: 2020-04-15
Last modified: 2026-06-17

Description

An authentication bypass vulnerability exists in Microsoft YourPhoneCompanion application for Android, in the way the application processes notifications generated by work profiles.This could allow an unauthenticated attacker to view notifications, aka 'Microsoft YourPhone Application for Android Authentication Bypass Vulnerability'.

Frequently asked questions

What is CVE-2020-0943?: An authentication bypass vulnerability exists in Microsoft YourPhoneCompanion application for Android, in the way the application processes notifications generated by work profiles.This could allow an unauthenticated attacker to view notifications, aka 'Microsoft YourPhone Application for Android Authentication Bypass Vulnerability'.
How severe is CVE-2020-0943?: CVE-2020-0943 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-0943 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-0943?: CVE-2020-0943 affects Microsoft Your Phone Companion. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-0943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-0943 published?: CVE-2020-0943 was published on 2020-04-15 and last updated on 2026-06-17.

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0943

Affected products (1)

cpe:2.3:a:microsoft:your_phone_companion:-:*:*:*:*:android:*:*