CVE-2020-8948

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-15 · updated 2026-06-17
Weakness: CWE-59

Description

The Sierra Wireless Windows Mobile Broadband Driver Packages (MBDP) before build 5043 allows an unprivileged user to overwrite arbitrary files in arbitrary folders using hard links. An unprivileged user could leverage this vulnerability to execute arbitrary code with system privileges.

Affected products

SierraWireless Mobile Broadband Driver Package: before 5043 — fixed in 5043

How to fix

Upgrade to a fixed version: SierraWireless Mobile Broadband Driver Package 5043. Check the vendor advisory for mitigations.

References

https://danishcyberdefence.dk/blog/sierra_wireless
https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2020-002-cve-2020-8948/#sthash.ByZB8ifG.dpbs
https://danishcyberdefence.dk/blog/sierra_wireless
https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2020-002-cve-2020-8948/#sthash.ByZB8ifG.dpbs

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