CVE-2023-26588

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

Published: 2023-04-11 Last update: 2025-02-11 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-26588 is rated Moderate Risk (45.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.57%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-26588

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.32% 0.57% +0.25%
2 2026-04-20 0.40% 0.32% -0.08%
3 2026-04-12 — 0.40% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-26588

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-26588

Affected software / configurations for CVE-2023-26588

Vendor Product Version Raw CPE
buffalo bs-gsl2024_firmware <= 1.10-0.03 cpe:2.3:o:buffalo:bs-gsl2024_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2016p_firmware <= 1.10-0.03 cpe:2.3:o:buffalo:bs-gsl2016p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2016_firmware <= 1.10-0.03 cpe:2.3:o:buffalo:bs-gsl2016_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2008_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2008_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2016_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2016_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2024_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2024_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2048_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2048_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2008p_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2008p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2016p_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2016p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2024p_firmware <= 1.0.10.01 cpe:2.3:o:buffalo:bs-gs2024p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2005_firmware < 1.12-0.01 cpe:2.3:o:buffalo:bs-gsl2005_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2008_firmware < 1.12-0.01 cpe:2.3:o:buffalo:bs-gsl2008_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2005p_firmware < 1.11-0.01 cpe:2.3:o:buffalo:bs-gsl2005p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gsl2008p_firmware < 1.11-0.01 cpe:2.3:o:buffalo:bs-gsl2008p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2016p_firmware < 1.1.7.01 cpe:2.3:o:buffalo:bs-gs2016p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2016hp_firmware < 1.1.7.01 cpe:2.3:o:buffalo:bs-gs2016hp_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2024p_firmware < 1.1.7.01 cpe:2.3:o:buffalo:bs-gs2024p_firmware:*:*:*:*:*:*:*:*
buffalo bs-gs2024hp_firmware < 1.1.7.01 cpe:2.3:o:buffalo:bs-gs2024hp_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-26588

cvelogic Threat Intelligence