⚠ Actively exploited
Added to CISA KEV on 2022-03-03. Federal agencies required to patch by 2022-03-17. Required action: Apply updates per vendor instructions..
CVE-2018-0156 — Improper Input Validation in Cisco IOS
Severity
7.5HIGHNVD
EPSS
15.5%
top 5.31%
CISA KEV
KEV
Added 2022-03-03
Due 2022-03-17
Exploit
Exploited in wild
Active exploitation observed
Affected products
Timeline
PublishedMar 28
KEV addedMar 3
KEV dueMar 17
Latest updateMay 13
CISA Required Action: Apply updates per vendor instructions.
Description
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a S…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6
Affected Packages2 packages
🔴Vulnerability Details
3GHSA▶
GHSA-25w3-v3vx-g29w: A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigge↗2022-05-13
CVEList▶
CVE-2018-0156: A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigge↗2018-03-28
VulnCheck
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