CVE-2021-20043 in the critical feed json
A Heap-based buffer overflow vulnerability in SonicWall SMA100 getBookmarks method allows a remote authenticated attacker to potentially ex…
published 2021-12-08 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-7506
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 23.3%
- EPSS 23.3% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known
Summary
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 and 500v appliances.
Exploit prediction
23.26% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- SonicWall SonicWall SMA100
Classification
References
-
psirt.global.sonicwall.com
/vuln-detail/SNWLID-2021-0026
vendor-advisory
Sources
- CVE List CVE-2021-20043
- NVD CVE-2021-20043
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