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
- Sonicwall Sma_200
- Sonicwall Sma_200_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_210
- Sonicwall Sma_210_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_400
- Sonicwall Sma_400_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_410
- Sonicwall Sma_410_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
- Sonicwall Sma_500v
- Sonicwall Sma_500v_firmware — versions 10.2.0.8-37sv, 10.2.1.1-19sv
Weakness classification (CWE)
Public proof-of-concept exploits
References
- PSIRT@sonicwall.com (x_refsource_CONFIRM, Vendor Advisory)
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.