CVE-2021-20018
CVE-2021-20018 is a medium-severity vulnerability in Sonicwall Sma100 Firmware with a CVSS 3.x base score of 4.9. 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: Medium (CVSS 3.x base score 4.9)
- CVSS v2: 4.0
- EPSS exploit prediction: 1% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-287
- Affected product: Sonicwall Sma100 Firmware
- Published:
- Last modified:
Description
A post-authenticated vulnerability in SonicWall SMA100 allows an attacker to export the configuration file to the specified email address. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.
Frequently asked questions
- What is CVE-2021-20018?
- A post-authenticated vulnerability in SonicWall SMA100 allows an attacker to export the configuration file to the specified email address. This vulnerability impacts SMA100 version 10.2.0.5 and earlier.
- How severe is CVE-2021-20018?
- CVE-2021-20018 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2021-20018 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-20018?
- CVE-2021-20018 affects Sonicwall Sma100 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-20018?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-20018 published?
- CVE-2021-20018 was published on 2021-03-13 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:sonicwall:sma100_firmware:*:*:*:*:*:*:*:*
More vulnerabilities in Sonicwall Sma100 Firmware
- CVE-2021-20017 — High (CVSS 8.8): A post-authenticated command injection vulnerability in SonicWall SMA100 allows an authenticated attacker to execute OS…
- CVE-2021-3450 — High (CVSS 7.4): The X509_V_FLAG_X509_STRICT flag enables additional security checks of the certificates present in a certificate chain.…
- CVE-2021-3449 — Medium (CVSS 5.9): An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a…
- CVE-2020-5132 — Medium (CVSS 5.3): SonicWall SSL-VPN products and SonicWall firewall SSL-VPN feature misconfiguration leads to possible DNS flaw known as…
All CVEs affecting Sonicwall Sma100 Firmware →
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 →