Peplink InControl up to 2026-06-03 /rest/o incorrect behavior order

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k1.90+

Summaryinfo

A vulnerability categorized as problematic has been discovered in Peplink InControl up to 2026-06-03. This issue affects some unknown processing of the file /rest/o. Executing a manipulation can lead to incorrect behavior order. This vulnerability appears as CVE-2026-57920. The attack may be performed from remote. There is no available exploit. This product is a managed service, so users do not have direct control over vulnerability countermeasures. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Peplink InControl up to 2026-06-03. This vulnerability affects an unknown functionality of the file /rest/o. The manipulation with an unknown input leads to a incorrect behavior order vulnerability. The CWE definition for the vulnerability is CWE-551. If a web server does not fully parse requested URLs before it examines them for authorization, it may be possible for an attacker to bypass authorization protection. As an impact it is known to affect confidentiality. CVE summarizes:

Peplink InControl 2 through 2.14.2 before 2026-06-03 allows use of a semicolon to bypass access-control rules for certain /rest/o/{orgId} endpoints.

The advisory is available at drive.google.com. This vulnerability was named CVE-2026-57920 since 06/26/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit.

Upgrading to version 2026-06-03 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

Managed Service

  • yes

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.7
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Incorrect behavior order
CWE: CWE-551
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔒

Upgrade: InControl 2026-06-03

Timelineinfo

06/26/2026 Advisory disclosed
06/26/2026 +0 days CVE reserved
06/26/2026 +0 days VulDB entry created
06/26/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: drive.google.com
Status: Confirmed

CVE: CVE-2026-57920 (🔒)
GCVE (CVE): GCVE-0-2026-57920
GCVE (VulDB): GCVE-100-374158

Entryinfo

Created: 06/26/2026 17:07
Changes: 06/26/2026 17:07 (64)
Complete: 🔍
Cache ID: 216::103

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