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W15e Firmware CVE-2023-27061

CRITICAL
Classic Buffer Overflow (CWE-120)
2023-03-13 cve@mitre.org
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could overflow a buffer to corrupt adjacent memory by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 1.0% exploitation probability (EPSS)

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AnalysisAI

Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the wifiFilterListRemark parameter in the modifyWifiFilterRules function. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the wifiFilterListRemark parameter in the modifyWifiFilterRules function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request. Affected products include: Tenda W15E Firmware.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the wifiFilterListRemark parameter in the modifyWifiFilterRules function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Threat Intelligence Overview

EPSS Score
1.0%
Top 41% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC Yes
EPSS 1.0%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

70
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +49
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:o:tenda:w15e_firmware:15.11.0.14:*:*:*:*:*:*:*
CVE-2023-27063 CRITICAL POC
9.8 Mar 13

Tenda V15V1.0 V15.11.0.14(1521_3190_1058) was discovered to contain a buffer overflow vulnerability via the DNSDomainNam

CVE-2022-42058 CRITICAL POC
9.8 Nov 15

Tenda AC1200 Router Model W15Ev2 V15.11.0.10(1576) was discovered to contain a stack overflow via the setRemoteWebManage

CVE-2024-4127 HIGH POC
8.8 Apr 24

A vulnerability was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vulnerability is remotely explo

CVE-2024-4126 HIGH POC
8.8 Apr 24

A vulnerability was found in Tenda W15E 15.11.0.14 and classified as critical. Rated high severity (CVSS 8.8), this vuln

CVE-2024-4125 HIGH POC
8.8 Apr 24

A vulnerability has been found in Tenda W15E 15.11.0.14 and classified as critical. Rated high severity (CVSS 8.8), this

CVE-2024-4124 HIGH POC
8.8 Apr 24

A vulnerability, which was classified as critical, was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), t

CVE-2024-4123 HIGH POC
8.8 Apr 24

A vulnerability, which was classified as critical, has been found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.

CVE-2024-4122 HIGH POC
8.8 Apr 24

A vulnerability classified as critical was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vulnerab

CVE-2024-4121 HIGH POC
8.8 Apr 24

A vulnerability classified as critical has been found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vul

CVE-2024-4120 HIGH POC
8.8 Apr 24

A vulnerability was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vulnerability is remotely explo

CVE-2024-4119 HIGH POC
8.8 Apr 24

A vulnerability was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vulnerability is remotely explo

CVE-2024-4118 HIGH POC
8.8 Apr 24

A vulnerability was found in Tenda W15E 15.11.0.14. Rated high severity (CVSS 8.8), this vulnerability is remotely explo

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