CVE-2020-16163
CVE-2020-16163 is a critical-severity vulnerability in Ripe Rpki Validator 3 with a CVSS 3.x base score of 9.1. 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-295.
Key facts
- Severity: Critical (CVSS 3.x base score 9.1)
- CVSS v2: 6.4
- EPSS exploit prediction: 1% (66th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-295
- Affected product: Ripe Rpki Validator 3
- Published:
- Last modified:
Description
An issue was discovered in RIPE NCC RPKI Validator 3.x before 3.1-2020.07.06.14.28. RRDP fetches proceed even with a lack of validation of a TLS HTTPS endpoint. This allows remote attackers to bypass intended access restrictions, or to trigger denial of service to traffic directed to co-dependent routing systems. NOTE: third parties assert that the behavior is intentionally permitted by RFC 8182
Frequently asked questions
- What is CVE-2020-16163?
- An issue was discovered in RIPE NCC RPKI Validator 3.x before 3.1-2020.07.06.14.28. RRDP fetches proceed even with a lack of validation of a TLS HTTPS endpoint. This allows remote attackers to bypass intended access restrictions, or to trigger denial of service to traffic directed to co-dependent routing systems. NOTE: third parties assert that the behavior is intentionally permitted by RFC 8182
- How severe is CVE-2020-16163?
- CVE-2020-16163 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2020-16163 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-16163?
- CVE-2020-16163 affects Ripe Rpki Validator 3. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-16163?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2020-16163 published?
- CVE-2020-16163 was published on 2020-07-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:ripe:rpki_validator_3:*:*:*:*:*:*:*:*
More vulnerabilities in Ripe Rpki Validator 3
- CVE-2020-16162 — High (CVSS 7.5): An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. Missing validation checks on CRL…
- CVE-2020-16164 — High (CVSS 7.4): An issue was discovered in RIPE NCC RPKI Validator 3.x through 3.1-2020.07.06.14.28. It allows remote attackers to…
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