6.5med

CVE-2017-12232KEVin critical feed

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.1 · CNA
CISA KEV
Yes
added 2022-03-03
EPSS
2.2%
percentile 82%
Public exploits
0
none known

Summary

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc03809.

Known exploited (CISA KEV)

Added
4 y ago
Due date
2022-03-24 (4 y ago)
Ransomware use
Unknown
Required action
Apply updates per vendor instructions.
Vendor / product
Cisco / IOS software
CISA name
Cisco IOS Software for Cisco Integrated Services Routers Denial-of-Service Vulnerability

CISA SSVC assessment

Exploitation
Active — exploited in the wild
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction (EPSS)

2.15% probability of exploitation in the next 30 days, higher than 82% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CISA ADP3.16.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD3.16.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA3.16.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.06.1AV:A/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • n/a Cisco IOS

Classification

Weakness
Technology feeds
Cisco IOS (RSS, critical only)

References

  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos · x_refsource_CONFIRM, x_transferred
  • securitytracker.com /id/1039452 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/101044 · vdb-entry, x_refsource_BID, x_transferred
  • cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12232 · government-resource

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.