Visual Studio Code Remote Code Execution Vulnerability

published 2021-04-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15155

cvss: 7.8; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

Patch / fix

fixed in 1 distros 1 links 1

microsoft visual_studio_code 1.55.2

code Arch Linux 1.56.2-1

arch linux advisories AVG-1819

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28477 advisory

Exploit prediction

2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA	3.1	7.0	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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	6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

Microsoft Visual Studio Code

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2021-28477
patch, vendor-advisory

Sources

CVE List CVE-2021-28477
NVD CVE-2021-28477

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.

Summary