Vulnerability Report

CVE-2021-3910

Title: OctoRPKI Invalid ROA Crash

Input Validation Error

Proof Of Concept

No public PoC currently indexed for CVE-2021-3910.

CWE Category CWE-20
Published Date Nov 11, 2021
Modified Date Apr 15, 2026
Exploit Status Not Found
Score 4.4 CVSS v3.1
Exploit Probability (EPSS)
0.55%

Vulnerability Summary

CVE-2021-3910: OctoRPKI crashes when encountering a repository that returns an invalid ROA (just an encoded NUL (\0) character).

Impacted Vendors

C
cloudflare 1

Reference Links

https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j https://www.debian.org/security/2022/dsa-5041 https://github.com/cloudflare/cfrpki/security/advisories/GHSA-5mxh-2qfv-4g7j https://www.debian.org/security/2022/dsa-5041
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
4.4
Attack Vector
NETWORK
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:N/I:N/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-3910 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.