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Fencer Intel
high 8.8

CVE-2019-19505 json

Tenda PA6 Wi-Fi Powerline extender 1.0.1.21 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the "Wire…

published 6y ago modified 4mo ago also EUVD-2019-9124

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.5%
EPSS 3.5% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

Tenda PA6 Wi-Fi Powerline extender 1.0.1.21 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the "Wireless" section in the web-UI. By sending a specially crafted hostname, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

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Exploit prediction

3.50% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • securityintelligence.com https://securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot-security/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.