TRENDnet TEW-821DAP 2.2.01b05 ssi /cgi-bin/ping.cgi popen/system ipaddr command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k2.34

Summaryinfo

A vulnerability was found in TRENDnet TEW-821DAP 2.2.01b05. It has been classified as critical. Affected by this vulnerability is the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. The manipulation of the argument ipaddr leads to command injection. This vulnerability is documented as CVE-2026-76582. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in TRENDnet TEW-821DAP 2.2.01b05. This issue affects the function popen/system of the file /cgi-bin/ping.cgi of the component ssi. The manipulation of the argument ipaddr with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-76582. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The exploit is available at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.4
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/19/2026 Advisory disclosed
08/19/2026 +0 days VulDB entry created
08/19/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-76582 (🔒)
GCVE (CVE): GCVE-0-2026-76582
GCVE (VulDB): GCVE-100-393041
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/19/2026 16:13
Changes: 08/19/2026 16:13 (57)
Complete: 🔍
Submitter: fuhanhan2015
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #877791: TRENDnet TEW-821DAP TEW-821DAP Command Injection (by fuhanhan2015)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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