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Fencer Vulns
high 7.5

CVE-2023-26588 json

Use of hard-coded credentials vulnerability in Buffalo network devices allows an attacker to access the debug function of the product.

published 2023-04-11 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30383

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

Use of hard-coded credentials vulnerability in Buffalo network devices allows an attacker to access the debug function of the product. The affected products and versions are as follows: BS-GSL2024 firmware Ver. 1.10-0.03 and earlier, BS-GSL2016P firmware Ver. 1.10-0.03 and earlier, BS-GSL2016 firmware Ver. 1.10-0.03 and earlier, BS-GS2008 firmware Ver. 1.0.10.01 and earlier, BS-GS2016 firmware Ver. 1.0.10.01 and earlier, BS-GS2024 firmware Ver. 1.0.10.01 and earlier, BS-GS2048 firmware Ver. 1.0.10.01 and earlier, BS-GS2008P firmware Ver. 1.0.10.01 and earlier, BS-GS2016P firmware Ver. 1.0.10.01 and earlier, and BS-GS2024P firmware Ver. 1.0.10.01 and earlier

Patch / fix

  • buffalo bs-gsl2005_firmware 1.12-0.01
  • buffalo bs-gsl2008_firmware 1.12-0.01
  • buffalo bs-gsl2005p_firmware 1.11-0.01
  • buffalo bs-gsl2008p_firmware 1.11-0.01
  • buffalo bs-gs2016p_firmware 1.1.7.01
  • buffalo bs-gs2016hp_firmware 1.1.7.01
  • buffalo bs-gs2024p_firmware 1.1.7.01
  • buffalo bs-gs2024hp_firmware 1.1.7.01

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • BUFFALO INC. BS-GSL and BS-GS series

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere

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.