Is CVE-2017-14033 in the CISA KEV catalog?

No. CVE-2017-14033 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2017-14033?

CVE-2017-14033 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2017-14033?

CVE-2017-14033 has an EPSS score of 7.73% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2017-14033?

Upgrade libruby1.9.1 on ubuntu 14.04 to 1.9.3.484-2ubuntu1.7 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2017-14033

HIGHEPSS 94th pctl

7.5

CVSS v3

NVD

Description

The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string.

CWE-119Buffer Overflow

How to fix

Remediation Available

libruby1.9.1Ubuntu

Fixed in:1.9.3.484-2ubuntu1.7USN-3528-1

Fixed in:1.9.3.484-2ubuntu1.5USN-3439-1

libruby2.3Ubuntu

Fixed in:2.3.1-2~16.04.5USN-3528-1

ruby1.9.1Ubuntu

Fixed in:1.9.3.484-2ubuntu1.7USN-3528-1

Fixed in:1.9.3.484-2ubuntu1.5USN-3439-1

ruby1.9.3Ubuntu

Fixed in:1.9.3.484-2ubuntu1.5USN-3439-1

Fixed in:1.9.3.484-2ubuntu1.7USN-3528-1

ruby2.3Ubuntu

Fixed in:2.3.1-2~16.04.5USN-3528-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

7.73%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch2

Vendor Advisory1

ruby-lang.org

Third-Party Advisory2

Other references7

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.