CVE-2026-13084Network attack vector

Unauthenticated iked crash via crafted IKEv2 messages

Published Jul 2, 2026 · Updated Jul 2, 2026

A null pointer dereference in WatchGuard Fireware OS allows remote attackers to crash iked by sending crafted IKEv2 messages. WatchGuard has not published the iked code path that dereferences the null pointer or the message field that reaches it. Reachability requires Mobile User VPN with IKEv2 or Branch Office VPN with IKEv2 configured with a dynamic gateway peer, and the reported consequence is VPN service interruption.

CVSS severity8.7
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A null pointer dereference in WatchGuard Fireware OS allows remote attackers to crash iked by sending crafted IKEv2 messages. WatchGuard has not published the iked code path that dereferences the null pointer or the message field that reaches it. Reachability requires Mobile User VPN with IKEv2 or Branch Office VPN with IKEv2 configured with a dynamic gateway peer, and the reported consequence is VPN service interruption.

The record

CVE
CVE-2026-13084
Published
Jul 2, 2026
Updated
Jul 2, 2026
Vendor
WatchGuard Technologies
Product
Fireware OS
Classifications
CWE-476, CAPEC-129, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=11.10.2 <=11.12.4+541730
  2. Affected versionversion=12.0 <=12.12
  3. Affected versionversion=12.5 <=12.5.18
  4. Affected versionversion=2025.1 <=2026.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WatchGuard Technologies · Fireware OSversion=11.10.2 <=11.12.4+541730; version=12.0 <=12.12; version=12.5 <=12.5.18; version=2025.1 <=2026.2

Published CVSS scores

8.7WatchGuard TechnologiesCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
CAPEC-129Pointer Manipulation
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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