Log in Start free

Actively exploited · Published Mar 28, 2018 · Assigned by cisco

CVE-2018-0154

High 7.5 Exploited

In plain English

A high-severity security flaw in Cisco IOS. Attackers are actively exploiting it in the wild (listed by CISA on March 3, 2022). The chance it is exploited in the next 30 days is estimated at 7.1% (higher than 94% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)7.1%top 5.8% of all CVEs
Exploited in the wildYesCISA KEV since Mar 3, 2022
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Mar 17, 2022.

Official description

A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient handling of VPN traffic by the affected device. An attacker could exploit this vulnerability by sending crafted VPN traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to hang or crash, resulting in a DoS condition. Cisco Bug IDs: CSCvd39267.

Affected products (as reported)

VendorProductVersions
n/a Cisco IOS Cisco IOS

Weakness: CWE-399 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References