CVE-2022-20697
Published: 15 April 2022
Summary
CVE-2022-20697 is a high-severity Insufficient Control Flow Management (CWE-691) vulnerability in Cisco Ios. Its CVSS base score is 8.6 (High).
Operationally, ranked in the top 36.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-25947
Vulnerability details
A vulnerability in the web services interface of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper resource management in the…
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HTTP server code. An attacker could exploit this vulnerability by sending a large number of HTTP requests to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
- 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.
Design principles and implementation approaches enforce robust control-flow management to maintain function and enable recovery after disruption.
Ensures network resources are released once the session ends or becomes inactive, closing the window for missing-release weaknesses.