Visual Studio Code Spoofing Vulnerability

published 2021-12-15 4y ago modified 2026-10-08 last mo. also EUVD-2021-30770

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.8%; EPSS 2.8% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

Patch / fix

fixed in 1 distros 1 links 1

Microsoft Visual Studio Code 1.63.1

code Arch Linux 1.63.0-1

arch linux advisories AVG-2542

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43908 advisory

Is CVE-2021-43908 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: last mo. (2026-10-08)

Exploit prediction

2.84% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
NVD	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

Microsoft Visual Studio Code

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2021-43908
patch, vendor-advisory

Sources

CVE List CVE-2021-43908
NVD CVE-2021-43908

Fencer Intel 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.