CVE-2019-11851

CRITICALNVD 9.89.8—

9.8

The ACENet service in Sierra Wireless ALEOS before 4.4.9, 4.5.x through 4.9.x before 4.9.5, and 4.10.x through 4.13.x before 4.14.0 allows remote attackers to execute arbitrary code via a buffer overflow.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 22.8%
KEV: Not listed

Published

December 26, 2022

Last Modified

April 16, 2025

References (4)

cve@mitrehttp://source.sierrawireless.com/-/media/support_downloads/security-bulletins/pdf/swi-psa-2021-001.ashx
cve@mitrehttps://www.sierrawireless.com/company/security/
af854a3a-2127-422b-91ae-364da2661108http://source.sierrawireless.com/-/media/support_downloads/security-bulletins/pdf/swi-psa-2021-001.ashx
af854a3a-2127-422b-91ae-364da2661108https://www.sierrawireless.com/company/security/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-120Buffer Copy without Checking Size (Classic Buffer Overflow)

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-23 09:29 UTCEG score recompute
2026-05-23 09:29 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2019-11851?

CVE-2019-11851 is a critical vulnerability published on December 26, 2022. The ACENet service in Sierra Wireless ALEOS before 4.4.9, 4.5.x through 4.9.x before 4.9.5, and 4.10.x through 4.13.x before 4.14.0 allows remote attackers to execute arbitrary code via a buffer overflow.

When was CVE-2019-11851 disclosed?

CVE-2019-11851 was first published in the National Vulnerability Database on December 26, 2022, with the most recent update on April 16, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-11851 actively exploited?

CVE-2019-11851 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 22.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-11851?

CVE-2019-11851 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-2019-11851?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-11851, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-11851

Explore →

Is Your Infrastructure Affected by CVE-2019-11851?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2019-11851

📅 Published

🔄 Last Modified

🔗 References (4)