CVE-2015-8263

HIGHNVD 8.68.6—

8.6

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.

CVSS v3: 8.6
EG Score: 8.6(medium)
EPSS: 74.3%
KEV: Not listed

Published

December 27, 2015

Last Modified

May 6, 2026

References (4)

cret@certhttp://www.securityfocus.com/bid/78873
cret@certhttps://www.kb.cert.org/vuls/id/403568
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/78873
af854a3a-2127-422b-91ae-364da2661108https://www.kb.cert.org/vuls/id/403568

Data Freshness Timeline

(refreshed 8× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-26 13:41 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-8263?

CVE-2015-8263 is a high vulnerability published on December 27, 2015. 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.

When was CVE-2015-8263 disclosed?

CVE-2015-8263 was first published in the National Vulnerability Database on December 27, 2015, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-8263 actively exploited?

CVE-2015-8263 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 74.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-8263?

CVE-2015-8263 has a CVSS v3 base score of 8.6 (NVD).

How do I remediate CVE-2015-8263?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-8263, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2015-8263

📅 Published

🔄 Last Modified

🔗 References (4)