What is CVE-2020-1329?

CVE-2020-1329 is a medium-severity vulnerability in Microsoft Bing, classified under Authentication Bypass by Spoofing. CVSS score: 6.5/10. Published 2020-06-09.

How severe is CVE-2020-1329?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Microsoft Bing

CVE-2020-1329

A spoofing vulnerability exists when Microsoft Bing Search for Android improperly handles specific HTML content, aka 'Microsoft Bing Search Spoofing Vulnerability'.

Published 2020-06-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.026 (84.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Microsoft Bing
Microsoft Bing Search For Android — versions unspecified

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1329 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2020-1329?: CVE-2020-1329 is a medium-severity vulnerability in Microsoft Bing, classified under Authentication Bypass by Spoofing. CVSS score: 6.5/10. Published 2020-06-09.
How severe is CVE-2020-1329?: Medium severity. CVSS v3 base score is 6.5 out of 10.