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Fencer Vulns
high 8.6

CVE-2018-0158 kev in the critical feed json

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauth…

published 2018-03-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-0981

cvss
8.6
version 3.1, CNA
cisa kev
Exploited
added 2022-03-03
epss
7.2%
EPSS 7.2% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

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.

Patch / fix

cisa required action Apply updates per vendor instructions.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-18-107-03 updated cvss 8.6

ICSA-18-107-03_Rockwell Automation Stratix Services Router

  • Rockwell Automation Allen-Bradley Stratix 5900 Services Router <= 15.6.3M1
    affected: mitigation “Rockwell Automation has released knowledge base article 1073313” rockwellautomation.custhelp.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

cisa ICSA-18-107-04 updated cvss 8.6

Rockwell Automation Stratix and ArmorStratix Switches

  • Rockwell Automation Allen-Bradley ArmorStratix 5700 Industrial Managed Ethernet Switches for extreme environments <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5400 Industrial Ethernet Switches <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5410 Industrial Distribution Switches <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 5700 Industrial Managed Ethernet Switches <= 15.2(6)E0a Rockwell Automation Allen-Bradley Stratix 8000 Modular Managed Ethernet Switches <= 15.2(6)E0a
    affected: mitigation “Rockwell Automation recommends users upgrade to FRN 15.2(6)E1 or later.” rockwellautomation.custhelp.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA patch deadline
  4. CISA SSVC: exploitation active

Known exploited

Added
4 y ago
Patch by
2022-03-17 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Cisco, IOS Software and Cisco IOS XE Software
CISA name
Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
partial
Assessed
1 y ago

Exploit prediction

7.19% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
NVD 2.0 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

  • n/a Cisco IOS and IOS XE

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-401 Missing Release of Memory after Effective Lifetime
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.