7.5

CVE-2017-6181: ruby-lang ruby Improper Input Validation

CVSS: 7.5v3.0HighModified
Published 03-04-2017Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-6181 is a high (CVSS 7.5) Improper Input Validation vulnerability in ruby-lang ruby. EPSS estimates a 3.65% chance of exploitation in the next 30 days, higher than 89.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
3.65%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 03-04-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

The parse_char_class function in regparse.c in the Onigmo (aka Oniguruma-mod) regular expression library, as used in Ruby 2.4.0, allows remote attackers to cause a denial of service (deep recursion and application crash) via a crafted regular expression.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.65%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

0.00 pp

From 3.65% on 20-09-2026

20-09-202620-10-2026
EPSS score
3.65%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ruby-lang1 product

1 vendor · 1 product

References

3 links