How severe is CVE-2020-5148?

CVE-2020-5148 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.

Is CVE-2020-5148 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5148?

CVE-2020-5148 affects Sonicwall Directory Services Connector. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5148?

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-2020-5148 published?

CVE-2020-5148 was published on 2021-03-05 and last updated on 2026-06-17.

CVE-2020-5148

CVE-2020-5148 is a high-severity vulnerability in Sonicwall Directory Services Connector with a CVSS 3.x base score of 8.2. 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-287.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 6.4
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Sonicwall Directory Services Connector
Published: 2021-03-05
Last modified: 2026-06-17

Description

SonicWall SSO-agent default configuration uses NetAPI to probe the associated IP's in the network, this client probing method allows a potential attacker to capture the password hash of the privileged user and potentially forces the SSO Agent to authenticate allowing an attacker to bypass firewall access controls.

Frequently asked questions

What is CVE-2020-5148?: SonicWall SSO-agent default configuration uses NetAPI to probe the associated IP's in the network, this client probing method allows a potential attacker to capture the password hash of the privileged user and potentially forces the SSO Agent to authenticate allowing an attacker to bypass firewall access controls.
How severe is CVE-2020-5148?: CVE-2020-5148 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability none.
Is CVE-2020-5148 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5148?: CVE-2020-5148 affects Sonicwall Directory Services Connector. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5148?: 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-2020-5148 published?: CVE-2020-5148 was published on 2021-03-05 and last updated on 2026-06-17.

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0003

Affected products (1)

cpe:2.3:a:sonicwall:directory_services_connector:*:*:*:*:*:*:*:*

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