CVE-2026-34911 (GCVE-0-2026-34911)
Vulnerability from cvelistv5 – Published: 2026-05-22 00:43 – Updated: 2026-05-22 12:37
VLAI
EPSS
VEX
Summary
A malicious actor with access to the network and low privileges could exploit a Path Traversal vulnerability found in UniFi OS devices to access files on the underlying system that could be manipulated to obtain sensitive information.
Severity
7.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-22 12:37 UTC
CWE
- CWE-22 - Path Traversal
Assigner
References
1 reference
Impacted products
31 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Ubiquiti Inc | UniFi OS Server |
Affected:
0 , < 5.0.8
(semver)
|
guessed | |
| Ubiquiti Inc | UDM |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDM-Pro |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDM-SE |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDM-Pro-Max |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDM-Beast |
Affected:
0 , < 5.1.11
(semver)
|
guessed | |
| Ubiquiti Inc | EFG |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDW |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDR |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDR7 |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UDR-5G |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | Express 7 |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNVR |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNVR-Pro |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNVR-Instant |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNVR-G2 |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNVR-G2-Pro |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | ENVR |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | ENVR-Core |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UNAS-2 |
Affected:
0 , < 5.1.10
(semver)
|
guessed | |
| Ubiquiti Inc | UNAS-4 |
Affected:
0 , < 5.1.10
(semver)
|
guessed | |
| Ubiquiti Inc | UNAS-Pro |
Affected:
0 , < 5.1.10
(semver)
|
guessed | |
| Ubiquiti Inc | UNAS-Pro-4 |
Affected:
0 , < 5.1.10
(semver)
|
guessed | |
| Ubiquiti Inc | UNAS-Pro-8 |
Affected:
0 , < 5.1.10
(semver)
|
guessed | |
| Ubiquiti Inc | UCKP |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCK |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCK-Enterprise |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCG-Ultra |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCG-Max |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCG-Fiber |
Affected:
0 , < 5.1.12
(semver)
|
guessed | |
| Ubiquiti Inc | UCG-Industrial |
Affected:
0 , < 5.1.12
(semver)
|
guessed |
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{
"defaultStatus": "unaffected",
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"lessThan": "5.1.10",
"status": "affected",
"version": "0",
"versionType": "semver"
}
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"vendor": "Ubiquiti Inc",
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"lessThan": "5.1.10",
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"version": "0",
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},
{
"defaultStatus": "unaffected",
"product": "UCKP",
"vendor": "Ubiquiti Inc",
"versions": [
{
"lessThan": "5.1.12",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "UCK",
"vendor": "Ubiquiti Inc",
"versions": [
{
"lessThan": "5.1.12",
"status": "affected",
"version": "0",
"versionType": "semver"
}
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"status": "affected",
"version": "0",
"versionType": "semver"
}
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},
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"product": "UCG-Ultra",
"vendor": "Ubiquiti Inc",
"versions": [
{
"lessThan": "5.1.12",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "UCG-Max",
"vendor": "Ubiquiti Inc",
"versions": [
{
"lessThan": "5.1.12",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
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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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