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NVD / CVE Program· CNA WatchGuard

CVE-2025-9242: WatchGuard Firebox iked Out of Bounds Write Vulnerability

Noroxi assessment

Priority: Now (action score 95/100)

  • CISA has confirmed exploitation in the wild (Nov 12, 2025). Remediation deadline for US federal agencies: Dec 3, 2025.
  • A ready-made attack module is public (Nuclei); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 92.2% (FIRST EPSS); higher than 99.8% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • According to the record, no fixed version is available yet.

Patch today or shut off access. Until a fix is released, restrict access to the affected component and follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · CISA KEV · FIRST EPSS

An Out-of-bounds Write vulnerability in the WatchGuard Fireware OS iked process may allow a remote unauthenticated attacker to execute arbitrary code. This vulnerability affects both the mobile user VPN with IKEv2 and the branch office VPN using IKEv2 when configured with a dynamic gateway peer. If the Firebox was previously configured with the mobile user VPN with IKEv2 or a branch office VPN using IKEv2 to a dynamic gateway peer, and both of those configurations have since been deleted, that Firebox may still be vulnerable if a branch office VPN to a static gateway peer is still configured.

CriticalCVSS 9.3 · v4.0KEVWeaponized No fix recorded
Published
Sep 17, 2025
Updated
Aug 10, 2026
EPSS
92.2% · 99th percentile

Report tools

JSON

Action score

95

Now

Patch today or shut off access.

CVSS
37 / 40 · 9.3 / 10
CISA KEV
30 / 30 · Listed
EPSS
28 / 30 · 92.2%

CISA SSVC decision

Exploitation
active
Automatable
yes
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · WatchGuard
9.3
NVD has not scored this yet; the score shown is the CNA’s.

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Nov 12, 2025. That signals real attacks, not theory.

Remediation deadline for US federal agencies: Dec 3, 2025.

Get told when this record changes

  • In CISA KEV: exploitation in the wild confirmed
  • Weaponized exploit exists
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2025-9242

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

One daily email digest (06:00 UTC); connect a webhook for KEV listings and weaponized exploits instantly.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
watchguardfireware
watchguardfirebox m270
watchguardfirebox m290
watchguardfirebox m370
watchguardfirebox m390
watchguardfirebox m440
watchguardfirebox m4600
watchguardfirebox m470
watchguardfirebox m4800
watchguardfirebox m5600
watchguardfirebox m570
watchguardfirebox m5800

and 27 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • watchguard fireware11.10.2 and later · before 12.11.4
  • watchguard fireware11.10.2 and later · before 12.5.13
  • watchguard fireware2025.1

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WatchGuard). Independent of NVD's CPE analysis and usually ahead of it.

  • WatchGuard Fireware OS

    • 11.0 and later · up to and including 11.12.4+541730affected
    • 12.0 and later · before 12.11.4affected
    • 2025.0 and later · before 2025.1.1affected
    • 12.0 and later · before 12.3.1+722811affected
    • 12.0 and later · before 12.5.13affected

Same product

watchguard: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-26318On WatchGuard Firebox and XTM appliances, an unauthenticated user can execute arbitrary code, aka FBX-22786.KEV
    92Now
  • CVE-2025-14733WatchGuard Firebox iked Out of Bounds Write VulnerabilityKEV
    76This week
  • CVE-2022-23176WatchGuard Firebox and XTM appliances allow a remote attacker with unprivileged credentials to access the system with a privileged managemenKEV
    68This week

Published before and after this one in the same product

  • ← EarlierCVE-2025-0178Feb 14, 2025 · WatchGaurd Firebox Host Header Injection Vulnerability
    20Monitor
  • ← EarlierCVE-2025-1071Feb 14, 2025 · WatchGuard Firebox Stored Cross-Site-Scripting (XSS) Vulnerability in spamBlocker Module
    19Monitor
  • Later →CVE-2025-11838Dec 4, 2025 · WatchGuard Firebox iked Memory Corruption Vulnerability
    34Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Nuclei detection template ×1
  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Nuclei detection templateNuclei template CVE-2025-9242 —
Proof-of-concept repository on GitHubstars:132025-10-01

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. First PoC+14 d
  3. CISA KEV+56 d
  4. TodayOct 30, 2026+409 d
EPSS, last 120 days+1% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-1473392 days apartWatchGuard Firebox iked Out of Bounds Write VulnerabilityKEV
    76This week
  • CVE-2026-3342167 days apartWatchGuard Firebox Out of Bounds Write Vulnerability
    36Monitor
  • CVE-2025-1202678 days apartWatchGuard Firebox Authenticated Out of Bounds Write in certd
    34Monitor
  • CVE-2025-1219578 days apartWatchGuard Firebox Authenticated Out of Bounds Write in Management CLI IPSec Configuration
    34Monitor
  • CVE-2025-1219678 days apartWatchGuard Firebox Authenticated Out of Bounds Write in Management CLI Ping Command
    34Monitor
  • CVE-2026-13050289 days apartWatchGuard Firebox networkd Out of Bounds Write Vulnerability
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records