CVE-2026-13384 (GCVE-0-2026-13384)
Vulnerability from cvelistv5 – Published: 2026-07-02 23:05 – Updated: 2026-08-27 22:58
VLAI
EPSS
VEX
Title
WatchGuard Firebox wgagent Out of Bounds Write Vulnerability
Summary
An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 00:00 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://psirt.watchguard.com/CVE-2026-13384 | vendor-advisory |
| https://www.watchguard.com/wgrd-psirt/advisory/wg… | vendor-advisory |
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| WatchGuard | Fireware OS |
Affected:
2025.1 , < 2026.2.1
(custom)
Affected: 12.1 , < 12.12.1 (custom) |
guessed | |
| WatchGuard | Fireware OS |
Affected:
12.1 , < 12.11.9
(custom)
|
guessed | |
| WatchGuard | Fireware OS |
Affected:
12.1 , < 12.5.19
(custom)
|
guessed |
Date Public
2026-07-02 23:05
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"sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-787"
}
],
"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-13384",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-06T14:32:44.575180Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-06T14:32:53.936Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"platforms": [
"Default"
],
"product": "Fireware OS",
"vendor": "WatchGuard",
"versions": [
{
"lessThan": "2026.2.1",
"status": "affected",
"version": "2025.1",
"versionType": "custom"
},
{
"lessThan": "12.12.1",
"status": "affected",
"version": "12.1",
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}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"EUCC"
],
"product": "Fireware OS",
"vendor": "WatchGuard",
"versions": [
{
"lessThan": "12.11.9",
"status": "affected",
"version": "12.1",
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}
]
},
{
"defaultStatus": "unaffected",
"platforms": [
"T15/T35"
],
"product": "Fireware OS",
"vendor": "WatchGuard",
"versions": [
{
"lessThan": "12.5.19",
"status": "affected",
"version": "12.1",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "12.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
"versionEndExcluding": "12.5.19",
"versionStartIncluding": "12.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
"versionEndExcluding": "2026.2.1",
"versionStartIncluding": "2025.1",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:watchguard:fireware_os:*:*:*:*:*:*:*:*",
"versionEndExcluding": "12.12.1",
"versionStartIncluding": "12.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": "OR"
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Cody Sixteen"
}
],
"datePublic": "2026-07-02T23:05:59.971Z",
"descriptions": [
{
"lang": "en",
"value": "An Out-of-bounds Write vulnerability in WatchGuard Fireware OS wgagent process could allow an authenticated privileged user to execute arbitrary code via a specially crafted requests to the Management Web UI."
}
],
"exploits": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
}
],
"value": "WatchGuard is not aware of any exploitation of this vulnerability in the wild."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 8.6,
"baseSeverity": "HIGH",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-27T22:58:27.286Z",
"orgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
"shortName": "WatchGuard"
},
"references": [
{
"tags": [
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],
"url": "https://psirt.watchguard.com/CVE-2026-13384"
},
{
"tags": [
"vendor-advisory"
],
"url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00021"
}
],
"solutions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19, Fireware OS 12.11.9"
}
],
"value": "Fireware OS 2026.2.1, Fireware OS 12.12.1, Fireware OS 12.5.19, Fireware OS 12.11.9"
}
],
"title": "WatchGuard Firebox wgagent Out of Bounds Write Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "5d1c2695-1a31-4499-88ae-e847036fd7e3",
"assignerShortName": "WatchGuard",
"cveId": "CVE-2026-13384",
"datePublished": "2026-07-02T23:05:59.971Z",
"dateReserved": "2026-06-25T22:44:10.384Z",
"dateUpdated": "2026-08-27T22:58:27.286Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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