High severity7.5NVD Advisory· Published Oct 5, 2017· Updated May 13, 2026
CVE-2017-12270
CVE-2017-12270
Description
A vulnerability in the gRPC code of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the emsd service stops. The vulnerability is due to the software's inability to process HTTP/2 packets. An attacker could exploit this vulnerability by sending a malformed HTTP/2 frame to the affected device. A successful exploit could allow the attacker to create a DoS condition when the emsd service stops. Cisco Bug IDs: CSCvb99388.
Affected products
1- cpe:2.3:o:cisco:ios_xr:-:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- www.securityfocus.com/bid/101171nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1039504nvdThird Party AdvisoryVDB Entry
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-ncsnvdVendor Advisory
News mentions
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