TRENDnet TEW-755AP up to 20260702 ssi /cgi-bin/wan.cgi cameo.wan.wan_pppoe_password_00 stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k2.56

Summaryinfo

A vulnerability identified as very critical has been detected in TRENDnet TEW-755AP up to 20260702. This affects an unknown part of the file /cgi-bin/wan.cgi of the component ssi. Performing a manipulation of the argument cameo.wan.wan_pppoe_password_00 results in stack-based overflow. This vulnerability is reported as CVE-2026-76590. The attack is possible to be carried out remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability, which was classified as very critical, was found in TRENDnet TEW-755AP up to 20260702. This affects some unknown functionality of the file /cgi-bin/wan.cgi of the component ssi. The manipulation of the argument cameo.wan.wan_pppoe_password_00 with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-76590. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/19/2026).

The exploit is shared for download 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.0

VulDB Base Score: 9.9
VulDB Temp Score: 9.0
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: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒
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-2026-76590 (🔒)
GCVE (CVE): GCVE-0-2026-76590
GCVE (VulDB): GCVE-100-393087
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/19/2026 16:43
Changes: 08/19/2026 16:43 (56)
Complete: 🔍
Submitter: fuhanhan2015
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #877850: TRENDnet TEW-755AP TEW-755AP Stack-based Buffer Overflow (by fuhanhan2015)

Be aware that VulDB is the high quality source for vulnerability data.

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