CVE-2020-5135
Last modified
CVE-2020-5135 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.. CISA has confirmed active exploitation in the wild. EPSS estimates a 26.87% chance of exploitation in the next 30 days.
Description
A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitation Status
This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by .
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Sonicwall | Sonicos | <= 6.0.5.3 |
| Sonicwall | Sonicos | >= 6.5.0.0, <= 6.5.1.11 |
| Sonicwall | Sonicos | >= 6.5.4.0, <= 6.5.4.7 |
| Sonicwall | Sonicos | 7.0.0.0 |
| Sonicwall | Sonicosv | <= 6.5.4.4 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
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