CVE-2026-7609
📛 CVE Title
TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection
Description
A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulDB
- CVSS severity
- MEDIUM
- CVSS score
- 5.3 / 10
- CVSS 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- Effective score
- 5.3 / 10 MEDIUM source: CNA overview
- CWE(s)
-
CWE-78,CWE-77 - Reserved
- 2026-05-01
- Published
- 2026-05-02 11:00 UTC
- Last updated
- 2026-05-04 19:45 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/7xxx/CVE-2026-7609.json
- Linked Threat
- CVE-2026-7609 — CVE-2026-7609
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-02 10:16:19 UTC
- NVD last modified
- 2026-05-06 20:24:21 UTC
- NVD CVSS v3.1
- 6.3 / 10 MEDIUM source: cna@vuldb.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L- Exploitability subscore
- 2.8 / 10
- Impact subscore
- 3.4 / 10
- EPSS score
- 0.0035 (probability of exploitation in next 30 days)
- EPSS percentile
- 57.62% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 06:39 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-26773 - Assigner
- VulDB
- Published
- May 2, 2026, 9:00:18 AM
- Updated
- May 4, 2026, 5:45:34 PM
- EUVD base score (CVSS 4.0)
-
5.3 / 10
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 - EUVD-reported EPSS
- 0.3500
- Vendors
- TRENDnet
- Products
-
TEW-821DAP (1.12B01)
ENISA description: A flaw has been found in TRENDnet TEW-821DAP up to 1.12B01. The impacted element is the function tools_diagnostic of the file /tmp/diagnostic of the component Firmware Udpate. This manipulation causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor explains: "That firmware version will only work on our hardware version v1.xR. We have already EOL that product 8 years ago and are no longer selling". This vulnerability only affects products that are no longer supported by the maintainer.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| TRENDnet | TEW-821DAP |
1.12B01 (affected)
|
— |
Affected products — CPE 2.3 (2) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:o:trendnet:tew-821dap_firmware:1.12b01:*:*:*:*:*:*:*cpe:2.3:h:trendnet:tew-821dap:1.0r:*:*:*:*:*:*:*
Vendor references (4)
References embedded in the original CVE record by the assigning CNA.
- VDB-360566 | TRENDnet TEW-821DAP Firmware Udpate diagnostic tools_diagnostic os command injection vdb-entrytechnical-description
- VDB-360566 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
- Submit #806216 | Trendnet TEW-821DAP v1.12B01 CWE-78 Improper Neutralization of Special Elements used in an O third-party-advisory
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI2.md exploitpatch
Web references (7)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI2.md tenable:github.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-7609 tenable:nvd.nist.gov
- https://vuldb.com/submit/806216 tenable:vuldb.com
- https://vuldb.com/vuln/360566 tenable:vuldb.com
- https://vuldb.com/vuln/360566/cti tenable:vuldb.com
- https://www.cve.org/CVERecord?id=CVE-2026-7609 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (4)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Trendnet/TEW-821DAP_CI2.md cna@vuldb.com ExploitThird Party Advisory
- https://vuldb.com/submit/806216 cna@vuldb.com Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/360566 cna@vuldb.com Third Party AdvisoryVDB Entry
- https://vuldb.com/vuln/360566/cti cna@vuldb.com Permissions RequiredVDB Entry
Remediations (19)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:epatch.pa.gov
Why does PATCH exist? Its purpose is to better enable the public to obtain criminal history record checks. The repository was created and is maintained in accordance with Pennsylvania's Criminal History Information Act contained in Chapter 91 of Title 18, Crimes Code. This Act also directs the Pennsylvania State Police (PSP) to disseminate criminal history data to criminal justice agencies ...
2026-05-23 20:48 UTC -
web:forums.ea.com
About This Thread This thread tracks Sims 4 mods and CC that have been "broken" or made obsolete by game update1.124, May 12, 2026 , and the May 21 hotfix, or declared unsupported by their creators. It also tracks updated game mods, important updates to custom content, general news from/about creators, and new bugfix mods.
2026-05-23 20:48 UTC -
web:github.com
A new and improved community patch for BO3. . Contribute to shiversoftdev/t7patch development by creating an account on GitHub.
2026-05-23 20:48 UTC -
web:patch.moe
Age Verification Are you 18 years or older? YES NO
2026-05-23 20:48 UTC -
web:pureinfotech.com
KB5074109 (build 26200.7623) for Windows 11 is causing problems on NVIDIA GPUs, but you can fix the issue by following these three tips.
2026-05-23 20:48 UTC -
web:www.bleepingcomputer.com
Today is Microsoft's April 2026 Patch Tuesday with security updates for 167 flaws, including 2 zero-day vulnerabilities.
2026-05-23 20:48 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-05-23 20:48 UTC -
web:www.leagueoflegends.com
League of Legends Patch 26.5 Notes Welcome to the official patch of First Stand, the first major international tournament of the year!
2026-05-23 20:48 UTC -
web:www.oracle.com
Oracle Critical Patch Update Advisory - January 2026 Description A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical ...
2026-05-23 20:48 UTC -
web:www.patchhawaii.org
PATCH provides access to registered and licensed child care, offers child care subsidies to eligible families, provides child development training and ECE scholarship opportunities, and assists those interested in starting a family child care business. PATCH is a free resource hub for families, child care professionals and communities of Hawaii.
2026-05-23 20:48 UTC -
web:community.ui.com
Published: May 21, 2026 Updated: May 22, 2026 Version: 1.1 Revision: 1.1 Summary 1 of 5 A malicious actor with access to the network and high privileges could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection. Affected Products: UniFi OS Server (Version 5.0.6 and earlier) Mitigation : Update your UniFi OS Server to Version 5.0.8 or later ...
2026-05-26 02:45 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .
2026-05-26 02:45 UTC -
web:support.servicenow.com
Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...
2026-05-26 02:45 UTC -
web:www.crowdstrike.com
Microsoft's February 2026 Patch Tuesday addresses 59 CVEs , featuring six exploited vulnerabilities, three of which were publicly known, and five Critical vulnerabilities.
2026-05-26 02:45 UTC -
web:www.microsoft.com
Security Update Guide Notifications Microsoft's free Security Update Guide Notifications provide links to security-related software updates and notification of re-released security updates. These notifications are sent via email throughout the month as needed.
2026-05-26 02:45 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 02:45 UTC -
web:www.techrepublic.com
Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.
2026-05-26 02:45 UTC -
web:www.virustotal.com
VirusTotal is a platform for scanning files and URLs for viruses, malware, and other threats using multiple antivirus engines.
2026-05-26 02:45 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-26 02:45 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-7609.json.
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