A buffer overflow vulnerability in the zepif_linkoutput() function of Free Software…
Priority LOW 35CWE-120Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A buffer overflow vulnerability in the zepif_linkoutput() function of Free Software Foundation lwIP git head version and version 2.1.2 allows attackers to access sensitive information via a crafted 6LoWPAN packet.
Why it matters now
EPSS 0.01216 68th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lwip_project:lwip:2.1.2:*:*:*:*:*:*:* | 2.1.2 | Vulnerable | Lwip Project |
- cpe:2.3:a:lwip_project:lwip:2.1.2:*:*:*:*:*:*:* Versions 2.1.2 Vulnerable ·Lwip Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-22284
- 2026-10-03 Alias added: GHSA-4f64-6qh9-pmfj
References
More Lwip Project Lwip vulnerabilities
- TI-2020-14322 A buffer overflow vulnerability in the icmp6_send_response_with_addrs_and_netif()… CVSS 3.1HIGH 7.5
- TI-2014-04018 resolv.c in the DNS resolver in uIP, and dns.c in the DNS resolver in lwIP 1.4.1 and… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2020-22284 · CVE Program
- CVE-2020-22284 · NVD
- FIRST EPSS
- GHSA-4f64-6qh9-pmfj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences