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% (58th 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% (58th 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% (58th 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:*:*:*:*:*:*:*:*

More vulnerabilities in Sonicwall Directory Services Connector

CVE-2023-44219 — High (CVSS 7.8): A local privilege escalation vulnerability in SonicWall Directory Services Connector Windows MSI client 4.1.21 and…

All CVEs affecting Sonicwall Directory Services Connector →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-101077 — Critical (CVSS 10.0): A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp…
CVE-2026-100886 — Critical (CVSS 10.0): A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected…
CVE-2026-77244 — Critical (CVSS 10.0): MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0,…
CVE-2026-94493 — Critical (CVSS 10.0): A vulnerability was detected in Gigatech PDV5701 1.0.31_240305_112640. This issue affects some unknown processing of…
CVE-2026-83099 — Critical (CVSS 10.0): Vulnerability in the Oracle Forms product of Oracle Fusion Middleware (component: Forms Services, C/S, Charmode).…
CVE-2026-83059 — Critical (CVSS 10.0): Vulnerability in the Oracle Internet Directory product of Oracle Fusion Middleware (component: OID LDAP Server).…

Browse all CWE-287 (Improper Authentication) vulnerabilities →