CVE-2021-41531: nlnet labs routinator
CVSS: 7.5v3.1HighModified
Published 21-09-2021Last modified 16-09-2024
Vulnerability summary
CVE-2021-41531 is a high (CVSS 7.5) vulnerability in nlnet labs routinator. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 59.9% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.93%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 21-09-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
NLnet Labs Routinator prior to 0.10.0 produces invalid RTR payload if an RPKI CA uses too large values in the max-length parameter in a ROA. This will lead to RTR clients such as routers to reject the RPKI data set, effectively disabling Route Origin Validation.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.93%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.93% on 19-09-2026
19-09-202619-10-2026
EPSS score0.93%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-1288Improper Validation of Consistency within InputThe product receives a complex input with multiple elements or fields that must be consistent with each other, but it does not validate or incorrectly validates that the input is actually consistent.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Nlnet labs1 product
- routinator≥ unspecified, ≤ 0.9.0
Nlnetlabs1 product
- routinator< 0.10.0
2 vendors · 2 products