CVE-2021-27084 in the critical feed json
Visual Studio Code Java Extension Pack Remote Code Execution Vulnerability
published 2021-03-11 5 y ago modified 2026-08-19 2 mo ago also EUVD-2021-13855
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 62.1%
- EPSS 62.1% chance of exploitation in 30 days, percentile 99.1%
- public exploits
- 0
- none known
Summary
Visual Studio Code Java Extension Pack Remote Code Execution Vulnerability
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 y ago
Exploit prediction
62.13% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.3 | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Visual Studio Code - Java Extension Pack
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2021-27084
vendor-advisory, patch
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2021-27084
patch, third-party-advisory
Sources
- CVE List CVE-2021-27084
- NVD CVE-2021-27084
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.