5.3med

CVE-2017-3878

A Denial of Service vulnerability in the Telnet remote login functionality of Cisco NX-OS Software running on Cisco Nexus 9000 Series Switc…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.9%
percentile 87%
Public exploits
0
none known

Summary

A Denial of Service vulnerability in the Telnet remote login functionality of Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a Telnet process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCux46778. Known Affected Releases: 7.0(3)I3(0.170). Known Fixed Releases: 7.0(3)I3(1) 7.0(3)I3(0.257) 7.0(3)I3(0.255) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1).

Exploit prediction (EPSS)

2.95% probability of exploitation in the next 30 days, higher than 87% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • n/a Cisco Nexus 9000 Series Switches

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

  • securitytracker.com /id/1038047 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315-nss · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/96927 · vdb-entry, x_refsource_BID, x_transferred

Sources

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