CVE-2022-22274
Published: 25 March 2022
Summary
CVE-2022-22274 is a critical-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Sonicwall Sonicos. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 2.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
A stack-based buffer overflow vulnerability exists in SonicOS, the operating system used by SonicWall firewalls. The flaw is triggered by specially crafted HTTP requests and is tracked under CWE-121 and CWE-787. It received a CVSS v3.1 score of 9.8 and was publicly disclosed on 25 March 2022.
A remote unauthenticated attacker can exploit the issue over the network by sending malicious HTTP requests, leading to denial of service or potential remote code execution on the firewall. The SonicWall PSIRT advisory SNWLID-2022-0003 at https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0003 addresses the vulnerability. The associated EPSS score reached a peak of 0.5728 and currently stands at 0.4861.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-27421
Vulnerability details
A Stack-based buffer overflow vulnerability in the SonicOS via HTTP request allows a remote unauthenticated attacker to cause Denial of Service (DoS) or potentially results in code execution in the firewall.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.