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CVE-2020-5135
CWE-120
Critical
102.9
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
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.
Source: NVD
Signals
- CVSS
- 9.8
- Critical · v3.1
- EPSS
- 26.86%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Mar 2022
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-120
- Published
- 12 Oct 2020
- Last modified 31 Oct 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time