CVE-2020-5129
CVE-2020-5129 is a high-severity vulnerability in Sonicwall Sma1000 Firmware with a CVSS 3.x base score of 7.5. 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-444.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (67th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-444
- Affected product: Sonicwall Sma1000 Firmware
- Published:
- Last modified:
Description
A vulnerability in the SonicWall SMA1000 HTTP Extraweb server allows an unauthenticated remote attacker to cause HTTP server crash which leads to Denial of Service. This vulnerability affected SMA1000 Version 12.1.0-06411 and earlier.
Frequently asked questions
- What is CVE-2020-5129?
- A vulnerability in the SonicWall SMA1000 HTTP Extraweb server allows an unauthenticated remote attacker to cause HTTP server crash which leads to Denial of Service. This vulnerability affected SMA1000 Version 12.1.0-06411 and earlier.
- How severe is CVE-2020-5129?
- CVE-2020-5129 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2020-5129 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-5129?
- CVE-2020-5129 affects Sonicwall Sma1000 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-5129?
- 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-2020-5129 published?
- CVE-2020-5129 was published on 2020-03-26 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:sonicwall:sma1000_firmware:*:*:*:*:*:*:*:*
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