AEGLIX vulnerability intelligence
CVE-2018-0158
HIGH · CVSS 8.6 · Analyzed
Published: 2018-03-28 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.
Severity and scoring
- CVSS score
- 8.6 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- Weaknesses
- CWE-20, CWE-401
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Cisco · IOS Software and Cisco IOS XE Software
- Added to catalog
- 2022-03-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-03-17
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:cisco:ios:15.5\(3\)s1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.12:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.12:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.5\(3\)s1.12:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.9:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.10:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.11:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios_xe:15.5\(3\)s1.12:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://www.securityfocus.com/bid/103566
Broken Link · Third Party Advisory · VDB Entry
- http://www.securitytracker.com/id/1040595
Broken Link · Third Party Advisory · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
Third Party Advisory · US Government Resource · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
Third Party Advisory · US Government Resource · VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike
Vendor Advisory
- http://www.securityfocus.com/bid/103566
Broken Link · Third Party Advisory · VDB Entry
- http://www.securitytracker.com/id/1040595
Broken Link · Third Party Advisory · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03
Third Party Advisory · US Government Resource · VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
Third Party Advisory · US Government Resource · VDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0158
US Government Resource