CVE-2021-1645
Windows Docker Information Disclosure Vulnerability
- Published
- Updated
- Reserved
- Assigned by
- microsoft
Description
Windows Docker Information Disclosure Vulnerability
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By microsoft
- 41 days later
· 41 days later
Published
- 4 years later
· 4 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| microsoftCNA (assigner) | 3.1 | Medium5.0 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C |
| NVDNVD · Modified | 3.1 | Medium5.0 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 7.8% · top 5.3% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- Information Disclosure
Affected products
Microsoft · Windows Server version 20H2
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 20H2
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1809
- affected 10.0.0 – < publication
Microsoft · Windows Server 2019
- affected 10.0.0 – < publication
Microsoft · Windows Server 2019 (Server Core installation)
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1909
- affected 10.0.0 – < publication
Microsoft · Windows Server, version 1909 (Server Core installation)
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 2004
- affected 10.0.0 – < publication
Microsoft · Windows Server version 2004
- affected 10.0.0 – < publication
Microsoft · Windows 10 Version 1607
- affected 10.0.0 – < publication
Microsoft · Windows Server 2016
- affected 10.0.0 – < publication
Microsoft · Windows Server 2016 (Server Core installation)
- affected 10.0.0 – < publication
References (4)
- Windows Docker Information Disclosure Vulnerability (opens in a new tab)vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1645 (opens in a new tab)x_refsource_MISCx_transferred
- 20210316 [CSA-2021-002] DP API ineffective in Windows containers (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://packetstormsecurity.com/files/161816/Microsoft-Windows-Containers-DP-API-Cryptography-Flaw.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-1645)Record last updated .