// For flags

CVE-2017-12270

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una vulnerabilidad en el código gRPC de Cisco IOS XR Software para los routers Network Convergence System (NCS) de la serie 5500 de Cisco podría permitir que un atacante remoto no autenticado provoque una denegación de servicio (DoS) cuando el servicio emsd se detiene. Esta vulnerabilidad se debe a que el software no es capaz de procesar paquetes HTTP/2. Un atacante podría explotar esta vulnerabilidad enviando un frame HTTP/2 mal formado al dispositivo afectado. Una explotación con éxito podría permitir que el atacante provoque una denegación de servicio cuando el servicio emsd se detenga. Cisco Bug IDs: CSCvb99388.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-08-03 CVE Reserved
  • 2017-10-05 CVE Published
  • 2023-04-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
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Affected