What is CVE-2021-38448?

CVE-2021-38448 is a high-severity vulnerability in Trane Ascend Air-Cooled Chiller Acr, classified under Code Injection. CVSS score: 7.5/10. Published 2021-11-22.

How severe is CVE-2021-38448?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Trane Ascend Air-Cooled Chiller Acr

CVE-2021-38448

The affected controllers do not properly sanitize the input containing code syntax. As a result, an attacker could craft code to alter the intended controller flow of the software.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.003 (19.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H.

Affected products

Trane Ascend_air-cooled_chiller_acr
Trane Intellipak_1
Trane Intellipak_2
Trane Odyssey_split_systems
Trane Symbio — versions 700, 800
Trane Symbio_700
Trane Symbio_800

Weakness classification (CWE)

CWE-94 — Code Injection

References

ics-cert@hq.dhs.gov (x_refsource_CONFIRM, US Government Resource, Third Party Advisory, Mitigation)

Frequently asked questions

What is CVE-2021-38448?: CVE-2021-38448 is a high-severity vulnerability in Trane Ascend Air-Cooled Chiller Acr, classified under Code Injection. CVSS score: 7.5/10. Published 2021-11-22.
How severe is CVE-2021-38448?: High severity. CVSS v3 base score is 7.5 out of 10.