What is CVE-2015-8263?

CVE-2015-8263 is a high-severity vulnerability in NETGEAR Wnr1000v3. CVSS score: 8.6/10. Published 2015-12-27.

How severe is CVE-2015-8263?

High severity. CVSS v3 base score is 8.6 out of 10.

Vulnerability in NETGEAR Wnr1000v3

CVE-2015-8263

NETGEAR WNR1000v3 devices with firmware 1.0.2.68 use the same source port number for every DNS query, which makes it easier for remote attackers to spoof responses by selecting that number for the destination port.

Published 2015-12-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.018 (78.1th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

NETGEAR Wnr1000v3
NETGEAR Wnr1000v3 Firmware — versions 1.0.2.68

References

www.securityfocus.com/bid/78873 (vdb-entry)
www.kb.cert.org/vuls/id/403568 (US Government Resource, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2015-8263?: CVE-2015-8263 is a high-severity vulnerability in NETGEAR Wnr1000v3. CVSS score: 8.6/10. Published 2015-12-27.
How severe is CVE-2015-8263?: High severity. CVSS v3 base score is 8.6 out of 10.