What is CVE-2019-11853?

CVE-2019-11853 is a low-severity vulnerability in Sierrawireless Airlink Es450, classified under Command Injection. CVSS score: 3.9/10. Published 2020-08-21.

How severe is CVE-2019-11853?

Low severity. CVSS v3 base score is 3.9 out of 10.

RCE in Sierrawireless Airlink Es450

CVE-2019-11853

Several potential command injections vulnerabilities exist in the AT command interface of ALEOS before 4.11.0, and 4.9.4.

Vulnerability class: Command Injection (OS Command Injection)

Published 2020-08-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.012 (68.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-77 — Command Injection

References

source.sierrawireless.com/resources/security-bulletins/sierra-wireless-technica… (Vendor Advisory)

Frequently asked questions

What is CVE-2019-11853?: CVE-2019-11853 is a low-severity vulnerability in Sierrawireless Airlink Es450, classified under Command Injection. CVSS score: 3.9/10. Published 2020-08-21.
How severe is CVE-2019-11853?: Low severity. CVSS v3 base score is 3.9 out of 10.