Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point…
Priority LOW 27Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Buffer overflow in the Web management interface in Linksys BEFW11S4 wireless access point router 2 and BEFSR11, BEFSR41, and BEFSRU31 EtherFast Cable/DSL routers with firmware before 1.43.3 with remote management enabled allows remote attackers to cause a denial of service (router crash) via a long password.
Why it matters now
EPSS 0.01967 80th 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 · 13
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:h:linksys:befn2ps4:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsr11:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsr11:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsr41:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsr41:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsr81:2.42.7.1:*:*:*:*:*:*:* | 2.42.7.1 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsru31:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsru31:1.43:*:*:*:*:*:*:* | 1.43 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befsx41:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
| cpe:2.3:h:linksys:befvp41:1.42.7:*:*:*:*:*:*:* | 1.42.7 | Vulnerable | Linksys |
- cpe:2.3:h:linksys:befn2ps4:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsr11:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsr11:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsr41:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsr41:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsr81:2.42.7.1:*:*:*:*:*:*:* Versions 2.42.7.1 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsru31:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsru31:1.43:*:*:*:*:*:*:* Versions 1.43 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befsx41:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
- cpe:2.3:h:linksys:befvp41:1.42.7:*:*:*:*:*:*:* Versions 1.42.7 Vulnerable ·Linksys
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2002-1312
- 2026-10-03 Alias added: GHSA-pcmr-f7vq-p97c
References
More Linksys Befn2ps4 vulnerabilities
- TI-2002-00105 Linksys EtherFast BEFN2PS4, BEFSR41, and BEFSR81 Routers, and possibly other products… CVSS 2.0MEDIUM 6.4
- TI-2004-00522 DHCP on Linksys BEFSR11, BEFSR41, BEFSR81, and BEFSRU31 Cable/DSL Routers, firmware… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2002-1312 · CVE Program
- CVE-2002-1312 · NVD
- FIRST EPSS
- GHSA-pcmr-f7vq-p97c · 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