Cisco Firepower Extensible Operating System (FXOS)

Also: Cisco Firepower Extensible Operating System (FXOS) 1.1.1.147, Cisco Firepower Extensible Operating System (FXOS) 1.1.1.160, Cisco Firepower Extensible Operating System (FXOS) 1.1.2.178, Cisco Firepower Extensible Operating System (FXOS) 1.1.2.51, Cisco Firepower Extensible Operating System (FXOS) 1.1.3.84, Cisco Firepower Extensible Operating System (FXOS) 1.1.3.86

22 CVEs · 1 KEV · Release check

CVE	Advisory	Fix	EPSS	CVSS		Updated
CVE-2021-40438	cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	100.00%	-	KEV	2022-01-20 (4 years ago)
CVE-2017-12243	cisco-sa-20171101-arce	Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	77.07%	-		2017-11-01 (8 years ago)
CVE-2021-34798	cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	64.51%	-		2022-01-20 (4 years ago)
CVE-2021-36160	cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	62.89%	-		2022-01-20 (4 years ago)
CVE-2021-33193	cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	46.18%	-		2022-01-20 (4 years ago)
CVE-2021-39275	cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	36.34%	-		2022-01-20 (4 years ago)
CVE-2020-3517	cisco-sa-fxos-nxos-cfs-dos-dAmnymbd	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	1.37%	-		2020-08-26 (5 years ago)
CVE-2017-12299	cisco-sa-20171115-firepower1	Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	1.16%	-		2019-08-30 (6 years ago)
CVE-2017-12329	cisco-sa-20171129-fxnx	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	1.10%	-		2018-01-11 (8 years ago)
CVE-2018-0395	cisco-sa-20181017-fxnx-os-dos	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	0.86%	-		2018-10-17 (7 years ago)
CVE-2021-1368	cisco-sa-nxos-udld-rce-xetH6w35	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	0.44%	-		2021-02-24 (5 years ago)
CVE-2021-34714	cisco-sa-ios-nxos-xr-udld-dos-W5hGHgtQ	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	-	-		2021-09-22 (4 years ago)
CVE-2019-1728	cisco-sa-20190515-nxos-conf-bypass	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	-	-		2021-07-12 (5 years ago)
CVE-2020-3166	cisco-sa-20200226-fxos-cli-file	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	-	-		2020-03-10 (6 years ago)
CVE-2019-1700	cisco-sa-20190220-firpwr-dos	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	-	-		2019-02-20 (7 years ago)
CVE-2018-0304	cisco-sa-20180620-fxnxos-ace	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-12 (8 years ago)
CVE-2018-0302	cisco-sa-20180620-fxos-ace	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-05 (8 years ago)
CVE-2018-0298	cisco-sa-20180620-fxos-dos	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-05 (8 years ago)
CVE-2018-0314	cisco-sa-20180620-fx-os-fabric-execution	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-05 (8 years ago)
CVE-2018-0305	cisco-sa-20180620-fx-os-fabric-dos	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-05 (8 years ago)
CVE-2018-0303	cisco-sa-20180620-fxnxos-dos	Advisory fix Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (23 hours ago) Advisory Cisco source	-	-		2018-07-05 (8 years ago)
CVE-2017-12277	cisco-sa-20171101-fpwr	Source details Source Cisco CSAF Status Known affected Raw product Cisco Firepower Extensible Operating System (FXOS) (CSAFPID-225888) CSAF fetched 2026-07-20 (1 day ago) Advisory Cisco source	-	-		2017-11-01 (8 years ago)