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CVE Record

CVE-2026-78168: EFM ipTIME T24000M Session Validation httpcon_check_session_url improper authentication

A security vulnerability has been detected in EFM ipTIME T24000M up to 14.20.0. This affects the function httpcon_check_session_url of the component Session Validation Handler. Such manipulation leads to improper authentication. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CriticalCVSS 10Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

EFM ipTIME T24000M devices running firmware through 14.20.0 may allow remote users to bypass authentication. Successful abuse could compromise the router’s confidentiality, integrity, and availability. Public exploit information reportedly exists, but the supplied sources do not establish active exploitation or a confirmed vendor fix.

Executive priority

Prioritize immediate exposure reduction and inventory validation. Public disclosure, unauthenticated remote reachability, and potential full compromise justify urgent handling. Do not assume patch availability: the supplied sources report no vendor response or confirmed fix.

Technical view

CVE-2026-78168 is a CWE-287 improper-authentication flaw in the T24000M Session Validation Handler, specifically httpcon_check_session_url. It is remotely reachable without authentication and carries a CVSS v2 score of 10.0. A linked submission describes remote code execution, but that impact is not independently confirmed in the supplied evidence.

Likely exposure

Exposure is most concerning where an affected device’s management interface is reachable from untrusted networks. Firmware versions 14.0 through 14.20.0 are listed as affected. The bundle provides no inventory, configuration, or deployment evidence, so organization-specific exposure remains unknown.

Exploitation context

A proof of concept or exploit disclosure is reportedly public. However, CVE-2026-78168 is not identified as a CISA KEV entry in the bundle, and no cited evidence confirms exploitation in the wild. Treat public disclosure as heightened risk, not proof of active attacks.

Researcher notes

The record attributes the flaw to session-validation logic, but the supplied bundle lacks detailed mechanics, affected endpoints, confirmed impact boundaries, and vendor verification. The RCE characterization appears in a linked submission and should be treated as unconfirmed. Avoid invasive validation on production devices.

Mitigation direction

  • Identify T24000M devices and record their installed firmware versions.
  • Remove management interfaces from public or untrusted network access.
  • Restrict administration to trusted networks or authorized management hosts.
  • Monitor EFM guidance for confirmed fixed firmware and upgrade instructions.
  • Consider isolating affected devices if management exposure cannot be adequately restricted.

Validation and detection

  • Confirm each device model and firmware version through trusted inventory or administrative records.
  • Review firewall and network policies governing access to device management interfaces.
  • Check whether management services are externally reachable without testing the vulnerability.
  • Review logs for unusual unauthenticated management requests or configuration changes.
  • Verify vendor guidance before declaring remediation complete.
Prepared
Confidence
medium
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-287: Credential and account abuse lookup

Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-78168 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (2.0)
Known Exploited
No
Published

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

4CVSS vectors
6Timeline events
1ADP providers
6Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: total

CVSS vector scores

4 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 2.0CriticalAV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR1010VulDB
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R3.95.9VulDB
9.8CVSS 3.0CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R3.95.9VulDB
9.3CVSS 4.0CriticalCVSS: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:P——VulDB

Vulnerability scoring details

Base CVSS 4.0 score

9.3Critical
CVSS 4.0 vector shape for CVE-2026-78168Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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:P

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineVulDB

    Advisory disclosed

  2. Source timelineVulDB

    VulDB entry created

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timelineVulDB

    VulDB entry last update

  5. CVE publishedCVE Program

    The CVE record was published.

  6. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
EFMipTIME T24000M14.0, 14.1, 14.2, 14.3, 14.4, 14.5, 14.6, 14.7, 14.8, 14.9, 14.10, 14.11, 14.12, 14.13, 14.14, 14.15, 14.16, 14.17, 14.18, 14.19, 14.20.0Listed
Weakness

CWE details

CWE-287

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-287 · source CWE mapping

Improper Authentication

Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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