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Fencer Vulns
high 8.8

CVE-2023-39454 json

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

published 2023-08-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-43177

cvss
8.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

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

Patch / fix

  • elecom wrc-x1800gs-b 1.13
  • elecom wrc-x1800gsa-b 1.13
  • elecom wrc-x1800gsh-b 1.13

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
16 mo ago

Exploit prediction

0.94% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.8 CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • ELECOM CO.,LTD. WRC-X1800GS-B
  • ELECOM CO.,LTD. WRC-X1800GSA-B
  • ELECOM CO.,LTD. WRC-X1800GSH-B
  • ELECOM CO.,LTD. WRC-X6000QS-G
  • ELECOM CO.,LTD. WRC-X6000QSA-G
  • ELECOM CO.,LTD. WRC-X3000GS3-B
  • ELECOM CO.,LTD. WRC-X3000GS3A-B
  • ELECOM CO.,LTD. WMC-2LX-B
  • ELECOM CO.,LTD. WMC-X1800GST-B
  • ELECOM CO.,LTD. WSC-X1800GS-B
  • ELECOM CO.,LTD. WMC-2LX2-B
  • ELECOM CO.,LTD. WMC-X1800GST2-B
  • ELECOM CO.,LTD. WSC-X1800GS2-B
  • elecom wrc-x1800gs-b
  • elecom wrc-x1800gsa-b
  • elecom wrc-x1800gsh-b

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.