Buffer overflow in SonicWall Nsa 2700

CVE-2023-0656

A Stack-based buffer overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS), which could cause an impacted firewall to crash.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.413 (98.7th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-0656: held from 0.413 to 0.413.

EPSS over last 30 days · oldest: 0.413 · newest: 0.413 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-0656?
CVE-2023-0656 is a high-severity vulnerability in SonicWall Nsa 2700, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2023-03-02.
How severe is CVE-2023-0656?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2023-0656 known to be exploited?
6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.