CVE-2021-33753
Microsoft Bing Search Spoofing Vulnerability
4.7 Medium
Microsoft Bing Search Spoofing Vulnerability
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
1.93%Up 1.5 points since Jul 15, 2021
What each source reports
CVE List Score used
Microsoft Bing Search Spoofing Vulnerability
Microsoft Bing Search Spoofing Vulnerability
- Record
CVE-2021-33753- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-20430
Microsoft Bing Search Spoofing Vulnerability
- Record
EUVD-2021-20430- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-cj52-jq68-pmqj
Microsoft Bing Search Spoofing Vulnerability
Microsoft Bing Search Spoofing Vulnerability
- Record
GHSA-cj52-jq68-pmqj- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N - Updated
- 2026-11-02
NVD
Microsoft Bing Search Spoofing Vulnerability
- Record
CVE-2021-33753- CVSS 3.1
- 4.7 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33753 is a medium vulnerability (CVSS 4.7) in Microsoft Bing, published July 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.93%, the 80th percentile. No source names a fixed version.