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CVE-2017-20165

26
FAUCET Score

CVE-2017-20165 is a high-severity vulnerability affecting debug-js debug versions up to 3.0.x, specifically within the useColors function in src/node.js. This flaw, categorized as CWE-1333 (Inefficient Regular Expression Complexity), can be triggered by manipulating the 'str' argument. The vulnerability carries a CVSS score of 7.5 (High), indicating it can be exploited remotely with low attack complexity, leading to high availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.9CPE matchmatch criteria
cpe:2.3:a:debug_project:debug:*:*:*:*:*:node.js:*:*
>= 3.0.0, < 3.1.0CPE matchmatch criteria
cpe:2.3:a:debug_project:debug:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.05%
Probability of exploitation in next 30 days
EPSS Percentile
79.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0205 is in the 63rd percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: debugFixed in: 2.6.9
npmpatch availablevia ghsa
Product: debugFixed in: 3.1.0

Vendor Advisories (1)

npmGHSA-9vvw-cc9w-f27hhigh

debug Inefficient Regular Expression Complexity vulnerability

Jan 9, 2023

References

github.com / debug-js/debug/commit/c38a0166c266a679c8de012d4eaccec3f944e685
Patch
github.com / debug-js/debug/pull/504
Patch
github.com / debug-js/debug/releases/tag/3.1.0
Release Notes
vuldb.com
Third Party AdvisoryVDB Entry
vuldb.com
Third Party AdvisoryVDB Entry