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CVE Record

CVE-2022-40860: Tenda AC15 router V15.03.05.19 contains a stack overflow vulnerability in the function formSetQosBand->FUN_...

Tenda AC15 router V15.03.05.19 contains a stack overflow vulnerability in the function formSetQosBand->FUN_0007dd20 with request /goform/SetNetControlList

CriticalCVSS 9.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This is a critical memory-safety flaw in Tenda AC15 router firmware V15.03.05.19. A remote unauthenticated attacker could potentially take control of the device, disrupt connectivity, or use the router as a foothold. The provided sources do not name a fixed firmware version.

Executive priority

Treat as urgent for environments using Tenda AC15 routers. Prioritize removing external management exposure and confirming whether affected firmware is present before deciding on firmware update or device replacement.

Technical view

CVE-2022-40860 is a stack overflow, mapped to CWE-787, in Tenda AC15 firmware V15.03.05.19. The vulnerable path is described as formSetQosBand->FUN_0007dd20 handling /goform/SetNetControlList. CVSS 3.1 is 9.8: network attack vector, low complexity, no privileges, no user interaction, and high CIA impact.

Likely exposure

Exposure is most likely where Tenda AC15 routers run firmware V15.03.05.19, especially if the administrative web interface is reachable from untrusted networks or the internet.

Exploitation context

The source bundle does not show CISA KEV listing or confirmed active exploitation. A public GitHub technical reference exists, so defenders should assume vulnerability details are accessible even without verified in-the-wild exploitation.

Researcher notes

The structured affected-product fields are incomplete, but the CVE description specifically names Tenda AC15 V15.03.05.19. No patch details are included in the supplied sources, so remediation should stay tied to vendor confirmation.

Mitigation direction

  • Check Tenda guidance for fixed firmware or replacement advice.
  • Remove internet exposure from router administration interfaces.
  • Restrict management access to trusted internal networks only.
  • Replace unsupported devices if no vendor fix is available.
  • Monitor affected routers for resets, configuration changes, or instability.

Validation and detection

  • Inventory Tenda AC15 routers and record firmware versions.
  • Identify devices running V15.03.05.19.
  • Confirm administrative web interfaces are not externally reachable.
  • Review configurations for unexpected QoS or network control changes.
  • Track vendor advisories for any named fixed release.
Prepared
Confidence
medium
Sources
3

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 · low confidence lookup

CWE-787: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2022-40860 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
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
0Timeline events
0ADP providers
2Source links

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
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2022-40860Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-787

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