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Vulnerability record · CVE-2021-33753 · published 14 July 2021
CVE-2021-33753: Microsoft bing vulnerability
Microsoft · Bing
Microsoft Bing Search Spoofing Vulnerability
4.7 CVSS 3.1 Medium EPSS 1.9% · top 21.0%
4.7CVSS 3.1 base score, v2 4.3
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
10 Aug 2026Last modified by NVD
Description
Microsoft Bing Search Spoofing Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
Track CVE-2021-33753 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
9.8CVE-2026-33819Microsoft bing deserialization of untrusted data vulnerabilityDeserialization of untrusted data in Microsoft Bing allows an unauthorized attacker to execute code over a network.EPSS 1.5%9.8CVE-2026-32186Microsoft bing server-side request forgery (ssrf) vulnerabilityServer-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to elevate privileges over a network.EPSS 0.90%9.8CVE-2025-21355Microsoft bing missing authentication for critical function vulnerabilityMissing Authentication for Critical Function in Microsoft Bing allows an unauthorized attacker to execute code over a networkEPSS 1.7%7.5CVE-2026-26120Microsoft bing server-side request forgery (ssrf) vulnerabilityServer-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to perform tampering over a network.EPSS 0.80%6.8CVE-2014-1670Microsoft bing code injection vulnerabilityThe Microsoft Bing application before 4.2.1 for Android allows remote attackers to install arbitrary APK files via vectors involving a crafted DNS re…EPSS 14%6.5CVE-2020-1329Microsoft bing authentication bypass by spoofing vulnerabilityA spoofing vulnerability exists when Microsoft Bing Search for Android improperly handles specific HTML content, aka 'Microsoft Bing Search Spoofing …EPSS 2.6%4.3CVE-2026-45650Microsoft bing vulnerabilityUser interface (ui) misrepresentation of critical information in Microsoft Bing allows an unauthorized attacker to perform spoofing over a network.EPSS 0.70%
Source: NIST National Vulnerability Database (record CVE-2021-33753), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.
