VDB
CVE-2026-21264
CVE-2026-21264
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Account allows an unauthorized attacker to perform spoofing over a network.
EPSS 0.08% · 23.3th percentile
Risk Scores
CVSS 3.1
9.300000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
EPSS Score
0.08%
23.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| microsoft | micrososft_account | -, - |
| Microsoft | Microsoft Account | -, - |
| microsoft | account |
Exploit Intelligence
- https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1 (msrc)
- CIRCL seen: CVE-2026-21264 (circl-sighting)
- CIRCL seen: CVE-2026-21264 (circl-sighting)
- CIRCL seen: CVE-2026-21264 (circl-sighting)
- CIRCL seen: CVE-2026-21264 (circl-sighting)
- CIRCL seen: CVE-2026-21264 (circl-sighting)
- Microsoft Account Spoofing Vulnerability (circl)
Timeline
- Jan 13, 2026 CVE Published
- Jan 22, 2026 PoC Published
- Jan 23, 2026 EPSS Score
- Jan 23, 2026 PoC Published
- Jan 26, 2026 EPSS Score
- Jan 28, 2026 EPSS Score
- Jan 31, 2026 EPSS Score
- Feb 3, 2026 EPSS Score
- Feb 5, 2026 EPSS Score
- Feb 8, 2026 EPSS Score
- Feb 11, 2026 EPSS Score
- Feb 13, 2026 EPSS Score
References
- Microsoft Account Spoofing Vulnerability vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-21264 advisory