CVE-2018-4058
CVE-2018-4058 is a high-severity vulnerability in Coturn Project Coturn with a CVSS 3.x base score of 7.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.7)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (57th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Coturn Project Coturn
- Published:
- Last modified:
Description
An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability.
Frequently asked questions
- What is CVE-2018-4058?
- An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability.
- How severe is CVE-2018-4058?
- CVE-2018-4058 has a CVSS 3.x base score of 7.7, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2018-4058 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-4058?
- CVE-2018-4058 affects Coturn Project Coturn. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-4058?
- 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-2018-4058 published?
- CVE-2018-4058 was published on 2019-03-21 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:coturn_project:coturn:*:*:*:*:*:*:*:*
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