The vulnerability of the Grub loader of Cisco IOS XR operating systems and Network Convergence System 540 Series routers, as well as Cisco 8000 Series routers, allows a hacker to execute arbitrary code.

GRUB boot loader flaw in Cisco Internetwork Operating System XR on NCS 540 and Cisco 8000 enables arbitrary code.

Reporter	Title	Published	Views	Family All 11
Circl	CVE-2021-1136	4 Feb 202120:40	–	circl
Cisco	Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities	3 Feb 202116:00	–	cisco
Tenable Nessus	Cisco IOS XR Software for Cisco 8000 and NCS 540 Routers Image Verification Vulnerabilities (cisco-sa-ioxr-l-zNhcGCBt)	11 Mar 202100:00	–	nessus
CNNVD	Multiple Cisco Products Data Forgery Issue Vulnerabilities	3 Feb 202100:00	–	cnnvd
CVE	CVE-2021-1136	4 Feb 202116:35	–	cve
Cvelist	CVE-2021-1136 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities	4 Feb 202116:35	–	cvelist
EUVD	EUVD-2021-6603	3 Oct 202520:07	–	euvd
NVD	CVE-2021-1136	4 Feb 202117:15	–	nvd
OSV	CVE-2021-1136	4 Feb 202117:15	–	osv
Prion	Design/Logic Flaw	4 Feb 202117:15	–	prion