Stack-based Buffer Overflow (CWE-121)
2026-04-29
sonicwall
4.9
CVSS 3.1
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CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Lifecycle Timeline
3
CVSS changed
Apr 29, 2026 - 17:22 NVD
4.9 (MEDIUM)
EUVD ID Assigned
Apr 29, 2026 - 17:00 euvd
EUVD-2026-26256
CVE Published
Apr 29, 2026 - 16:21 nvd
MEDIUM 4.9
DescriptionNVD
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.
Analysis
A post-authentication Stack-based Buffer Overflow vulnerabilities in SonicOS allows a remote attacker to crash a firewall.
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).
EUVD-2026-26256