What is CVE-2019-11847?

CVE-2019-11847 is a high-severity vulnerability in Sierrawireless Airlink Es440, classified under Improper Privilege Management. CVSS score: 7.3/10. Published 2020-08-21.

How severe is CVE-2019-11847?

High severity. CVSS v3 base score is 7.3 out of 10.

Privilege escalation in Sierrawireless Airlink Es440

CVE-2019-11847

An improper privilege management vulnerabitlity exists in ALEOS before 4.11.0, 4.9.4 and 4.4.9. An authenticated user can escalate to root via the command shell.

Vulnerability class: Privilege Escalation

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

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (31.1th percentile), scored 2026-09-28.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-269 — Improper Privilege Management

References

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

Frequently asked questions

What is CVE-2019-11847?: CVE-2019-11847 is a high-severity vulnerability in Sierrawireless Airlink Es440, classified under Improper Privilege Management. CVSS score: 7.3/10. Published 2020-08-21.
How severe is CVE-2019-11847?: High severity. CVSS v3 base score is 7.3 out of 10.