Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2017-16021

20
FAUCET Score

CVE-2017-16021 describes a Regular Expression Denial of Service (ReDoS) vulnerability in uri-js versions 2.1.1 and earlier, specifically impacting the uri-js module's URL validation function. An attacker can exploit this by providing a specially crafted, malicious URL to the uri-js.parse() function, causing the application to hang and consume 100% CPU resources. Rated as Medium severity (CVSS 6.5), this vulnerability has a high availability impact (A:H) with low attack complexity, requiring only user-supplied input. There is currently no public exploit code, Metasploit modules, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.1CPE matchmatch criteria
cpe:2.3:a:garycourt:uri-js:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 82nd percentile among its peer group of 21,957 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: uri-jsFixed in: 3.0.0

Vendor Advisories (1)

npmGHSA-333w-rxj3-f55rmedium

Regular Expression Denial Of Service in uri-js

Jul 24, 2018

References

github.com / garycourt/uri-js/issues/12
ExploitIssue TrackingThird Party Advisory
nodesecurity.io / advisories/100
Broken LinkThird Party Advisory