CVE-2022-20946

高 7.5CVE-2022-20946 · 15/11/2022 公開 · 11/08/2026 更新

要点

CVE-2022-20946 は secure firewall threat defense (cisco) に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.95%（全脆弱性の 61.3% より高い）。
修正版の情報はまだありません。参考情報のベンダー勧告を確認してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
secure firewall threat defense cisco	`= 7.1.0.0= 7.1.0.1= 7.1.0.2≥ 6.3.0, ≤ 6.3.0.5≥ 6.4.0, ≤ 6.4.0.15≥ 6.5.0, ≤ 6.5.0.5≥ 6.6.0, ≤ 6.6.5.2≥ 6.7.0, ≤ 6.7.0.3≥ 7.0.0, ≤ 7.0.3`	修正版なし

概要

A vulnerability in the generic routing encapsulation (GRE) tunnel decapsulation feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to a memory handling error that occurs when GRE traffic is processed. An attacker could exploit this vulnerability by sending a crafted GRE payload through an affected device. A successful exploit could allow the attacker to cause the device to restart, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-gre-dos-hmedHQPM"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.