CVE-2017-20162: vercel ms
Vulnerability summary
CVE-2017-20162 is a medium (CVSS 5.3) vulnerability in vercel ms. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.7% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 05-01-2023PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
A vulnerability, which was classified as problematic, has been found in vercel ms up to 1.x. This issue affects the function parse of the file index.js. The manipulation of the argument str leads to inefficient regular expression complexity. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.0.0 is able to address this issue. The patch is named caae2988ba2a37765d055c4eee63d383320ee662. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-217451.
CVSS metrics
7 scores · 4 sources · 3 versions- CVE.orgCNA4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · NpmEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST3.5LowAV:N/AC:M/Au:S/C:N/I:N/A:P
EPSS trend
Probability
1.02%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
+0.03 pp
From 0.99% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundMs
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Ubuntu2 products
- npmAll versions (No fix recorded)
- qt6-webengineAll versions (No fix recorded)
Npm1 product
- ms< 2.0.0
Vercel1 product
- ms≥ 1.0, < 2.0 | < 2.0.0
3 vendors · 4 products
References
11 links
- github.com/vercel/msPACKAGE