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Vulnerabilities

Vulnerability · CVE-2026-33280

Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in t…

Published Mar 27, 2026 · catalog updated Jun 17, 2026 · wcr-1166dhpl firmware

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-33280. EPSS is 0.38%. Act only if a listed version of wcr-1166dhpl firmware is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Advisory link
Affected products
cpe buffalo/wcr-1166dhpl firmware · cpe buffalo/wsr3600be4-kh firmware · cpe buffalo/wsr3600be4p firmware · cpe buffalo/wxr-1750dhp firmware · cpe buffalo/wxr-1750dhp2 firmware · cpe buffalo/wxr-1900dhp firmware

Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe buffalo/wcr-1166dhpl firmwareversion unspecified
  • cpe buffalo/wsr3600be4-kh firmwareversion unspecified
  • cpe buffalo/wsr3600be4p firmwareversion unspecified
  • cpe buffalo/wxr-1750dhp firmwareversion unspecified
  • cpe buffalo/wxr-1750dhp2 firmwareversion unspecified
  • cpe buffalo/wxr-1900dhp firmwareversion unspecified
  • cpe buffalo/wxr-1900dhp2 firmwareversion unspecified
  • cpe buffalo/wxr-1900dhp3 firmwareversion unspecified
  • cpe buffalo/wxr-5950ax12 firmwareversion unspecified
  • cpe buffalo/wxr-6000ax12b firmwareversion unspecified
  • cpe buffalo/wxr-6000ax12p firmwareversion unspecified
  • cpe buffalo/wxr18000be10p firmwareversion unspecified

How to fix CVE-2026-33280

  • No stored fix

    No vendor fix text is stored. Use the linked advisory before you change production.

  • Version check

    No version range is stored, so an installed version cannot be checked on this page.

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-33280. EPSS is 0.38%. Act only if a listed version of wcr-1166dhpl firmware is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-912: Hidden Functionality. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 27, 2026 · NIST NVD

    Detected

    Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

Sources

  • CVE.orgVulnerability recordCVE-2026-33280

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-33280

    30-day exploitation probability 0.38%

    first.org
  • NIST NVDVulnerability recordCVE-2026-33280

    Hidden functionality issue exists in BUFFALO Wi-Fi router products, which may allow an attacker to gain access to the product’s debugging functionality, resulting in the execution of arbitrary OS commands.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 28, 2026
  • CVE.orgOct 16, 2026
  • NIST NVDOct 15, 2026