How severe is CVE-2020-8948?

CVE-2020-8948 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-8948 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-8948?

CVE-2020-8948 affects Sierrawireless Mobile Broadband Driver Package. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-8948?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-8948 published?

CVE-2020-8948 was published on 2020-04-15 and last updated on 2026-06-17.

CVE-2020-8948

CVE-2020-8948 is a high-severity vulnerability in Sierrawireless Mobile Broadband Driver Package with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-59.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-59
Affected product: Sierrawireless Mobile Broadband Driver Package
Published: 2020-04-15
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-8948?: 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.
How severe is CVE-2020-8948?: CVE-2020-8948 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-8948 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-8948?: CVE-2020-8948 affects Sierrawireless Mobile Broadband Driver Package. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-8948?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-8948 published?: CVE-2020-8948 was published on 2020-04-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sierrawireless:mobile_broadband_driver_package:*:*:*:*:*:*:*:*

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