LiveActive security incident?Get immediate response
CVE Record

CVE-2026-22226: Command Injection Vulnerability on TP-Link Archer BE230 and AX73

A command injection vulnerability may be exploited after the admin's authentication in the VPN server configuration module on TP-Link Archer BE230 v1.2 and Archer AX73 v2. Successful exploitation could allow an attacker to gain full administrative control of the device, resulting in severe compromise of configuration integrity, network security, and service availability. This CVE covers one of multiple distinct OS command injection issues identified across separate code paths. Although similar in nature, each instance is tracked under a unique CVE ID. This issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420 and Archer AX73 v2 < 1.3.1 Build 20260430.

HighCVSS 8.5Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

TP-Link reports an authenticated command injection flaw in the VPN server configuration area of Archer BE230 v1.2 and Archer AX73 v2 routers. An attacker who already has admin authentication could gain full administrative control of the device, risking network settings, security controls, and availability.

Executive priority

Prioritize remediation where these routers protect business networks, remote offices, or sensitive segments. The vulnerability needs admin authentication, but successful exploitation could fully compromise the router. Treat this as high priority firmware maintenance, especially where router admin access is broadly reachable or credentials may be exposed.

Technical view

CVE-2026-22226 is CWE-78 OS command injection affecting Archer BE230 v1.2 before 1.2.4 Build 20251218 rel.70420 and Archer AX73 v2 before 1.3.1 Build 20260430. CVSS 4.0 is 8.5. The vector indicates adjacent attack surface, low complexity, high privileges required, no user interaction, and high device impact.

Likely exposure

Exposure is limited to affected TP-Link router hardware and firmware versions. The flaw requires admin authentication and appears tied to the VPN server configuration module. Organizations using these models for branch, home-office, or small-office routing should verify firmware versions promptly.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. Practical risk rises if admin credentials are shared, weak, reused, or already compromised. Adjacent-network positioning is indicated by the CVSS vector, but the advisory does not provide broader exploit details.

Researcher notes

This CVE covers one command injection instance among multiple distinct issues across separate code paths. Public sources identify the affected module and fixed firmware thresholds but do not provide exploit details. Avoid assuming other TP-Link models or hardware revisions are affected without vendor confirmation.

Mitigation direction

  • Update Archer BE230 v1.2 to 1.2.4 Build 20251218 rel.70420 or later.
  • Update Archer AX73 v2 to 1.3.1 Build 20260430 or later.
  • Use TP-Link regional firmware pages matching the exact model and hardware version.
  • Restrict router administration to trusted administrators and networks.
  • Review TP-Link FAQ 4935 and model firmware pages for latest vendor guidance.

Validation and detection

  • Inventory TP-Link Archer BE230 v1.2 and Archer AX73 v2 devices.
  • Confirm each device hardware revision before applying firmware.
  • Check current firmware version against the fixed versions listed by TP-Link.
  • Verify VPN server configuration access is limited to authorized administrators.
  • Review administrative account hygiene and recent configuration changes.
Prepared
Confidence
high
Sources
7

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-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-22226 mapping review

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

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.5 (4.0)
Known Exploited
No
Published

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

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.

1CVSS vectors
3Timeline events
1ADP providers
7Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

1 official score

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
8.5CVSS 4.0HighCVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L——TPLink

Vulnerability scoring details

Base CVSS 4.0 score

8.5High
CVSS 4.0 vector shape for CVE-2026-22226Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

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

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. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. 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
TP-Link Systems Inc.Archer BE230 v1.20unaffected
TP Link Systems Inc.Archer AX73 v20unaffected
Weakness

CWE details

CWE-78

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