Multiple DoS Attack Vectors in sflow packet handling
Priority MEDIUM 41CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
sflow decode package does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume large amounts of memory resulting in a denial of service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00971 62nd percentileScored 2026-11-07
Fix Fixed goflow (Cloudflare): 3.4.4github.com/cloudflare/goflow/v3 (Go): 3.4.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cloudflare | goflow | before 3.4.4 | 3.4.4 | Patch available | CNA |
| — | github.com/cloudflare/goflow/v3 (Go) | before 3.4.4 | 3.4.4 | Patch available | GHSA-9rpw-2h95-666c |
- goflow VendorCloudflare Affected before 3.4.4 Fixed in 3.4.4 Patch available CNA
- github.com/cloudflare/goflow/v3 (Go) Vendor— Affected before 3.4.4 Fixed in 3.4.4 Patch available GHSA-9rpw-2h95-666c
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:cloudflare:goflow:*:*:*:*:*:*:*:* | before 3.4.4 | Vulnerable | Cloudflare |
- cpe:2.3:a:cloudflare:goflow:*:*:*:*:*:*:*:* Versions before 3.4.4 Vulnerable ·Cloudflare
Remediation
- Fix · CNA goflow (Cloudflare) Fixed in 3.4.4
- Fix · GHSA-9rpw-2h95-666c github.com/cloudflare/goflow/v3 (Go) Fixed in 3.4.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-2529
- 2026-10-03 Alias added: GHSA-9rpw-2h95-666c
References
Advisory 2
Sources
- CVE-2022-2529 · CVE Program
- CVE-2022-2529 · NVD
- FIRST EPSS
- GHSA-9rpw-2h95-666c · GitHub Advisory Database · CC BY 4.0
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