Home/CVE/Buffer overflow vulnerability exists in ELECOM wireless LAN routers, which may allow an unauthenticated attacker to exec
CVE

CVE-2023-39454

Buffer overflow vulnerability exists in ELECOM wireless LAN routers, which may allow an unauthenticated attacker to exec

Buffer overflow vulnerability exists in ELECOM wireless LAN routers, which may allow an unauthenticated attacker to execute arbitrary code.

CRITICAL · CVSS 9.8 EPSS 0.00735
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

3
elecom wrc-x1800gs-b firmware<= 1.13
elecom wrc-x1800gsa-b firmware<= 1.13
elecom wrc-x1800gsh-b firmware<= 1.13
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · vultures@jpcert.or.jp
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD18 Aug 2023 · 10:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jvn.jp/en/vu/JVNVU91630351/Third Party Advisory
https://www.elecom.co.jp/news/security/20230711-01/Vendor Advisory
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