How severe is CVE-2020-5147?

CVE-2020-5147 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2020-5147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5147?

CVE-2020-5147 affects Sonicwall Netextender. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5147?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-5147 published?

CVE-2020-5147 was published on 2021-01-09 and last updated on 2026-06-17.

CVE-2020-5147

CVE-2020-5147 is a medium-severity vulnerability in Sonicwall Netextender with a CVSS 3.x base score of 5.3. 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-428.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.6
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-428
Affected product: Sonicwall Netextender
Published: 2021-01-09
Last modified: 2026-06-17

Description

SonicWall NetExtender Windows client vulnerable to unquoted service path vulnerability, this allows a local attacker to gain elevated privileges in the host operating system. This vulnerability impact SonicWall NetExtender Windows client version 10.2.300 and earlier.

Frequently asked questions

What is CVE-2020-5147?: SonicWall NetExtender Windows client vulnerable to unquoted service path vulnerability, this allows a local attacker to gain elevated privileges in the host operating system. This vulnerability impact SonicWall NetExtender Windows client version 10.2.300 and earlier.
How severe is CVE-2020-5147?: CVE-2020-5147 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2020-5147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5147?: CVE-2020-5147 affects Sonicwall Netextender. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-5147 published?: CVE-2020-5147 was published on 2021-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:sonicwall:netextender:*:*:*:*:*:windows:*:*

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