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Vulnerabilities

Vulnerability · CVE-2026-27650

OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products.

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

Check if you run it

No confirmed exploitation is on record for CVE-2026-27650. EPSS is 1.45%. 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.
Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.45%
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

OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be executed on the products.

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-2026-27650

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-2026-27650. EPSS is 1.45%. 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-78: OS Command Injection. EPSS 1.45%. 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

    OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be executed on the products.

  2. Jun 17, 2026 · NIST NVD

    Updated

    OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be executed on the products.

Sources

  • CVE.orgVulnerability recordCVE-2026-27650

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27650

    30-day exploitation probability 1.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27650

    OS Command Injection vulnerability exists in BUFFALO Wi-Fi router products. If this vulnerability is exploited, an arbitrary OS command may be executed on the products.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.