Buffer overflow in Sonicwall Sma_200

CVE-2021-20043

A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacker to potentially execute code as the nobody user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 a…

Vulnerability class: Buffer Overflow

EPSS: 0.233 (97.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-20043?
CVE-2021-20043 is a high-severity vulnerability in Sonicwall Sma_200, classified under Heap-based Buffer Overflow. CVSS score: 8.8/10. Published 2021-12-08.
How severe is CVE-2021-20043?
High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2021-20043 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.