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CVE-2022-3616

25
FAUCET Score

CVE-2022-3616 is a Denial of Service (DoS) vulnerability affecting Cloudflare's OctoRPKI. Attackers can craft excessively long chains of Certificate Authorities (CAs), causing OctoRPKI to exceed its maximum iteration limit and crash, thereby preventing RPKI validation. This vulnerability has a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and no user interaction required, leading to a high impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.4CPE matchmatch criteria
cpe:2.3:a:cloudflare:octorpki:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
33.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 12th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/cloudflare/cfrpkiFixed in: 1.4.4

Vendor Advisories (1)

goGHSA-pmw9-567p-68pcmedium

OctoRPKI crashes when max iterations is reached

Oct 31, 2022

References

github.com / cloudflare/cfrpki/security/advisories/GHSA-pmw9-567p-68pc
Third Party Advisory