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CVE Record

CVE-2026-9513: Totolink CA750-PoE Setting cstecgi.cgi NTPSyncWithHost os command injection

A weakness has been identified in Totolink CA750-PoE 6.2c.510. This issue affects the function NTPSyncWithHost of the file /cgi-bin/cstecgi.cgi of the component Setting Handler. Executing a manipulation of the argument host_time can lead to os command injection. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks.

MediumCVSS 6.5Not KEV-listed Updated
Discuss exposure Back to CVEs
Glexia's Take moderate

Analyst readout for executives and security teams

Plain-English summary

CVE-2026-9513 is an OS command injection issue in Totolink CA750-PoE firmware 6.2c.510. A remote authenticated user may be able to abuse the device setting handler to run unintended system commands. Public exploit material exists, but the bundle does not show confirmed active exploitation or a vendor fix.

Executive priority

Treat this as a moderate, near-term network appliance risk. Public exploit availability raises urgency, but authentication is required and active exploitation is not confirmed. Prioritize exposed or remotely administered devices first.

Technical view

The flaw affects NTPSyncWithHost in /cgi-bin/cstecgi.cgi, where manipulation of the host_time argument can lead to OS command injection. VulDB maps it to CWE-77 and CWE-78. The CVSS v2 score is 6.5 with network access, low complexity, single authentication, and partial confidentiality, integrity, and availability impact.

Likely exposure

Known exposure is Totolink CA750-PoE running firmware 6.2c.510. Risk is higher if the management interface is reachable from untrusted networks or exposed to the internet. The supplied sources do not establish other affected versions, other Totolink products, or default unauthenticated exposure.

Exploitation context

The sources state the attack can be launched remotely and that exploit material is public. CVSS indicates authentication is required. CISA KEV status is false in the bundle, and no cited source confirms active exploitation in the wild.

Researcher notes

Evidence supports command injection through host_time in NTPSyncWithHost on CA750-PoE 6.2c.510. Patch availability is not identified in the bundle. Avoid assuming broader product impact without vendor confirmation or additional testing.

Mitigation direction

  • Check Totolink advisories and firmware downloads for an official fix.
  • Remove management access from the public internet.
  • Restrict administration to trusted networks or VPN-only access.
  • Use strong unique administrator credentials and rotate shared passwords.
  • Monitor for suspicious requests to the affected CGI setting handler.

Validation and detection

  • Inventory Totolink CA750-PoE devices and confirm firmware versions.
  • Verify whether any device runs firmware 6.2c.510.
  • Check external exposure of device management interfaces.
  • Review logs for access to /cgi-bin/cstecgi.cgi setting actions.
  • Confirm vendor remediation status before declaring devices fixed.
Prepared
Confidence
medium
Sources
7

Public sources used

Based on public source material and reviewed before publication.

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-77: 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
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-2026-9513 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 profile CVE Program record
Severity
Medium
CVSS
6.5 (2.0)
Known Exploited
No
Published

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P/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.

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

SSVC decision data

CISA-ADP CISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: noTechnical Impact: partial

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.

Score Version Severity Vector Exploit Impact Source
6.5 CVSS 2.0 Medium AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR 8 6.4 VulDB
6.3 CVSS 3.1 Medium CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 2.8 3.4 VulDB
6.3 CVSS 3.0 Medium CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R 2.8 3.4 VulDB
5.3 CVSS 4.0 Medium CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P — — VulDB

Vulnerability scoring details

Base CVSS 4.0 score

5.3 Medium
CVSS 4.0 vector shape for CVE-2026-9513 Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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 timeline VulDB

    Advisory disclosed

  2. Source timeline VulDB

    VulDB entry created

  3. CVE reserved CVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timeline VulDB

    VulDB entry last update

  5. CVE published CVE Program

    The CVE record was published.

  6. CVE updated CVE Program

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

ADP provider summaries

CISA-ADP CISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

Vendor Product Version / package Status
Totolink CA750-PoE 6.2c.510 Listed
Weakness

CWE details

CWE-77CWE-78

CWE links open conservative ATT&CK lookup hints, not official CWE-to-ATT&CK mappings. Source links are consolidated once in the official source material section above.