Home/CVE/A security vulnerability has been detected in Trendnet TEW-657BRM 1.00.1. This impacts the function Edit of the file /se
CVE
CVE-2026-53521
A security vulnerability has been detected in Trendnet TEW-657BRM 1.00.1. This impacts the function Edit of the file /se
A security vulnerability has been detected in Trendnet TEW-657BRM 1.00.1. This impacts the function Edit of the file /setup.cgi. Such manipulation of the argument pcdb_list leads to os command injection.
The attack may be launched remotely. The exploit has been disclosed publicly and may be used. The vendor confirms, that "[t]he product in question (...) has been discontinued and end of life since June 23, 2011, that is more than 14 years ago.
We no longer provide support for this product, so we are not able to confirm the vulnerabilities. We will make an announcement on our website's product support page and notify customers who registered their products with us." This vulnerability only affects products that are no longer supported by the maintainer.
MEDIUM · CVSS 6.3
EPSS 0.00376
EPSS exploitation odds0.38% · top 40%
Schedule remediation
- Public exploit or PoC is available
No Sigma yet — build one →
YARA rules0
Look this up elsewhere - one-click external pivots
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How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2026-5352, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked.
EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal.
CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score.
Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits.
PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
EPSS exploitation probability
0.38%
Top 40%odds of exploitation in the next 30 days
CVSS metric silhouette
shape grows toward worst-case
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Tech impact
partial
CVSS vector breakdown
Exploitability - how they get in
Attack Vector
Network
Adjacent
Local
Physical
Attack Complexity
Low
High
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Impact - what breaks
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LLifecycle
- 02 Apr 2026Published to NVD
- 29 Apr 2026Last modified
Every entry is a recorded date - NVD publish/modify, CISA KEV add, public exploit disclosure. No inferred events.
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Public Exploits & PoCs
1These PoC and exploit links come from public sources and are not verified to be safe or functional. Review the code before running anything, and treat unverified entries as untrusted. Signed-in users mark whether it works, rate 1-10, and can report malware with a required reason that becomes a public comment.
Works?
no reports yet
Rating
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ATT&CK techniques
1Techniques this CVE enables - linked via CWE → CAPEC → ATT&CK. Pills with a solid outline are named directly in ATT&CK or Nuclei templates (high confidence); the others are linked through weakness mappings.
▤ Build a SIEM detection for these techniques▤
CAPEC attack patterns
11Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.
CAPEC-CAPEC-108 · Command Line Execution through SQL Injection CAPEC-CAPEC-136 · LDAP Injection CAPEC-CAPEC-15 · Command Delimiters CAPEC-CAPEC-183 · IMAP/SMTP Command Injection CAPEC-CAPEC-248 · Command Injection CAPEC-CAPEC-40 · Manipulating Writeable Terminal Devices CAPEC-CAPEC-43 · Exploiting Multiple Input Interpretation Layers CAPEC-CAPEC-6 · Argument Injection CAPEC-CAPEC-75 · Manipulating Writeable Configuration Files CAPEC-CAPEC-76 · Manipulating Web Input to File System Calls CAPEC-CAPEC-88 · OS Command Injection
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Weakness Classification
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Affected Products & Versions
1trendnet tew-657brm firmwareall versions
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Related CVEs
8CVEs linked to this one by a shared weakness (CWE) or affected product - joins on data already in the engine, with the reason shown per row. Not a guess.
CVE-1999-0039
webdist CGI program (webdist.cgi) in SGI IRIX allows remote attackers to execute...
same CWE-77
HIGH
CVE-2005-2773
HP OpenView Network Node Manager 6.2 through 7.50 allows remote attackers to exe...
same CWE-77
CRITICAL
CVE-2005-2793
PHP remote file inclusion vulnerability in welcome.php in phpLDAPadmin 0.9.6 and...
same CWE-77
CVE-2007-3010
masterCGI in the Unified Maintenance Tool in Alcatel OmniPCX Enterprise Communic...
same CWE-77
CRITICAL
CVE-1999-0067
phf CGI program allows remote command execution through shell metacharacters.
same CWE-78
CVE-1999-0043
Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" ...
same CWE-78
CRITICAL
CVE-2001-1583
lpd daemon (in.lpd) in Solaris 8 and earlier allows remote attackers to execute ...
same CWE-78
CVE-2002-0061
Apache for Win32 before 1.3.24, and 2.0.x before 2.0.34-beta, allows remote atta...
same CWE-78
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References & Sources
3Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.