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PatchSiren cyber security CVE debrief

CVE-2026-10871 Shibby CVE debrief

A vulnerability has been found in Shibby Tomato 1.28.0000. This vulnerability affects the function start_6rd_tunnel of the file /sbin/rc of the component Web UI. Such manipulation of the argument ipv6_6rd_borderrelay leads to os command injection. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This project is superseded by FreshTomato.

Vendor
Shibby
Product
Tomato
CVSS
HIGH 7.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Users of Shibby Tomato 1.28.0000, particularly those with remote access to the Web UI, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by improper handling of the ipv6_6rd_borderrelay argument in the start_6rd_tunnel function of /sbin/rc. This allows for OS command injection, enabling remote attackers to execute arbitrary commands.

Defensive priority

HIGH

Recommended defensive actions

  • Apply patches or updates from the vendor, if available.
  • Use secure communication protocols to protect against remote exploitation.
  • Limit access to the Web UI to trusted users and networks.
  • Consider migrating to FreshTomato, as Shibby Tomato is superseded.

Evidence notes

The CVE-2026-10871 vulnerability has a CVSS score of 7.3 and is classified as HIGH severity. The vulnerability is related to CWE-77 and CWE-78.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10871 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10871

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-10871 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10871

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.