What’s Vulnerable › Vulnerabilities

CVE-2021-42534: Trane Building Automation Controllers Cross-site Scripting

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-22 · updated 2026-06-17
• Weakness: CWE-79

Description

The affected product’s web application does not properly neutralize the input during webpage generation, which could allow an attacker to inject code in the input forms.

Affected products

• Trane Tracer SC: through 3.8

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-292-02
• https://us-cert.cisa.gov/ics/advisories/icsa-21-292-02

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