What is CVE-2018-17065?

CVE-2018-17065 is a critical-severity vulnerability in Dlink Dir-816 A2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-09-15.

How severe is CVE-2018-17065?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-17065 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Dlink Dir-816 A2

CVE-2018-17065

An issue was discovered on D-Link DIR-816 A2 1.10 B05 devices. Within the handler function of the /goform/DDNS route, a very long password could lead to a stack-based buffer overflow and overwrite the return address.

Vulnerability class: Buffer Overflow

Published 2018-09-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.019 (78.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Dlink Dir-816 A2
Dlink Dir-816 A2 Firmware — versions 1.10_b05

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

Public proof-of-concept exploits

PAGalaxyLab/VulInfo

References

github.com/PAGalaxyLab/VulInfo/tree/master/D-Link/DIR-816/stack_overflow_1 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-17065?: CVE-2018-17065 is a critical-severity vulnerability in Dlink Dir-816 A2, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-09-15.
How severe is CVE-2018-17065?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-17065 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.