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TI-2026-21114 Aliases CVE-2026-26120GHSA-5j3j-x96g-89v5

Microsoft Bing Tampering Vulnerability

Priority MEDIUM 40CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from Microsoft.

Summary

Server-side request forgery (ssrf) in Microsoft Bing allows an unauthorized attacker to perform tampering over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00594 48th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Bing-—No fix listedCNA
  • Microsoft Bing VendorMicrosoft Affected - Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:bing:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
  • cpe:2.3:a:microsoft:bing:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Tampering
Exploited
No
Publicly disclosed
No
Exploitability
—

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-26120
  2. 2026-10-03 Alias added: GHSA-5j3j-x96g-89v5
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

  • TI-2025-15322 Microsoft Bing Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
  • TI-2026-26190 Microsoft Bing Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-24719 Microsoft Bing Elevation of Privilege Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2014-01290 The Microsoft Bing application before 4.2.1 for Android allows remote attackers to… CVSS 2.0MEDIUM 6.8
  • TI-2020-01290 Authentication bypass by spoofing in Microsoft Bing Search for Android CVSS 3.1MEDIUM 6.5
  • TI-2021-13125 Microsoft Bing Search Spoofing Vulnerability CVSS 3.1MEDIUM 6.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences