SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-0282

A vulnerability in the TCP socket code of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload.

MEDIUM 6.8EPSS 2.00%

Does this matter?

Lower severity and a low EPSS score (2.00%). Track it; it rarely justifies an emergency change on its own.

Description

A vulnerability in the TCP socket code of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a state condition between the socket state and the transmission control block (TCB) state. While this vulnerability potentially affects all TCP applications, the only affected application observed so far is the HTTP server. An attacker could exploit this vulnerability by sending specific HTTP requests at a sustained rate to a reachable IP address of the affected software. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition on an affected device.

CVSS 3.1
6.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS
2.00% probability · 81th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-371
Affected
cisco/ios · cisco/ios xe
Source
psirt@cisco.com
EPSS trend
0%3%5%27 October 2026: 2.00%27 October 202627 October 2026

EPSS 2.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.