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Vulnerability record · CVE-2023-39827 · published 14 August 2023

CVE-2023-39827: Tenda a18 firmware out-of-bounds write vulnerability

Tenda · A18 Firmware

Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the rule_info parameter in the formAddMacfilterRule function.

7.5 CVSS 3.1 High EPSS 0.82% · top 44.6% CWE-787 · Out-of-bounds write
7.5CVSS 3.1 base score
0.82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Tenda A18 V15.13.07.09 was discovered to contain a stack overflow via the rule_info parameter in the formAddMacfilterRule function.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/lst-oss/Vulnerability/tree/main/Tenda/A18/formAddMacfilterRule ExploitThird Party Advisory
https://github.com/lst-oss/Vulnerability/tree/main/Tenda/A18/formAddMacfilterRule ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-50585Tenda a18 firmware out-of-bounds write vulnerabilityTenda A18 v15.13.07.09 was discovered to contain a stack overflow via the devName parameter in the formSetDeviceName function.EPSS 0.70%8.8CVE-2024-32305Tenda a18 firmware stack-based buffer overflow vulnerabilityTenda A18 v15.03.05.05 firmware has a stack overflow vulnerability located via the PPW parameter in the fromWizardHandle function.EPSS 0.61%7.5CVE-2023-39828Tenda a18 firmware out-of-bounds write vulnerabilityTenda A18 V15.13.07.09 was discovered to contain a stack overflow via the security parameter in the formWifiBasicSet function.EPSS 0.82%7.5CVE-2023-39829Tenda a18 firmware out-of-bounds write vulnerabilityTenda A18 V15.13.07.09 was discovered to contain a stack overflow via the wpapsk_crypto2_4g parameter in the fromSetWirelessRepeat function.EPSS 0.82%7.5CVE-2022-44931Tenda a18 firmware out-of-bounds write vulnerabilityTenda A18 v15.13.07.09 was discovered to contain a stack overflow via the security_5g parameter at /goform/WifiBasicSet.EPSS 0.88%7.5CVE-2022-44932Tenda a18 firmware improper access control vulnerabilityAn access control issue in Tenda A18 v15.13.07.09 allows unauthenticated attackers to access the Telnet service.EPSS 0.68%7.4CVE-2026-2877Tenda a18 firmware memory buffer overflow vulnerabilityA vulnerability has been found in Tenda A18 15.13.07.13. This affects the function strcpy of the file /goform/WifiExtraSet of the component Httpd Ser…EPSS 0.96%7.4CVE-2026-2876Tenda a18 firmware memory buffer overflow vulnerabilityA vulnerability was determined in Tenda A18 15.13.07.13. This affects the function parse_macfilter_rule of the file /goform/setBlackRule. This manipu…EPSS 0.96%

Source: NIST National Vulnerability Database (record CVE-2023-39827), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.