What is CVE-2019-19505?

CVE-2019-19505 is a high-severity vulnerability in Tendacn Pa6, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-06-25.

How severe is CVE-2019-19505?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tendacn Pa6

CVE-2019-19505

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.

Vulnerability class: Buffer Overflow

Published 2020-06-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.035 (88.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.035 · newest: 0.035 · change: 0.000

Affected products

Tendacn Pa6
Tendacn Pa6 Firmware — versions 1.0.1.21

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

securityintelligence.com/posts/vulnerable-powerline-extenders-underline-lax-iot… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-19505?: CVE-2019-19505 is a high-severity vulnerability in Tendacn Pa6, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-06-25.
How severe is CVE-2019-19505?: High severity. CVSS v3 base score is 8.8 out of 10.