How severe is CVE-2018-3737?

CVE-2018-3737 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-3737 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3737?

CVE-2018-3737 affects Joyent Sshpk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3737?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-3737 published?

CVE-2018-3737 was published on 2018-06-07 and last updated on 2026-06-17.

CVE-2018-3737

CVE-2018-3737 is a high-severity vulnerability in Joyent Sshpk with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-185.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-185
Affected product: Joyent Sshpk
Published: 2018-06-07
Last modified: 2026-06-17

Description

sshpk is vulnerable to ReDoS when parsing crafted invalid public keys.

Frequently asked questions

What is CVE-2018-3737?: sshpk is vulnerable to ReDoS when parsing crafted invalid public keys.
How severe is CVE-2018-3737?: CVE-2018-3737 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-3737 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3737?: CVE-2018-3737 affects Joyent Sshpk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3737?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-3737 published?: CVE-2018-3737 was published on 2018-06-07 and last updated on 2026-06-17.

References

https://hackerone.com/reports/319593

Affected products (1)

cpe:2.3:a:joyent:sshpk:*:*:*:*:*:node.js:*:*

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