How severe is CVE-2015-8263?

CVE-2015-8263 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2015-8263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8263?

CVE-2015-8263 primarily affects Netgear Wnr1000v3 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-8263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2015-8263 published?

CVE-2015-8263 was published on 2015-12-27 and last updated on 2026-06-17.

CVE-2015-8263

CVE-2015-8263 is a high-severity vulnerability in Netgear Wnr1000v3 Firmware with a CVSS 3.x base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 5.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Netgear Wnr1000v3 Firmware
Published: 2015-12-27
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2015-8263?: CVE-2015-8263 has a CVSS 3.x base score of 8.6, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2015-8263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8263?: CVE-2015-8263 primarily affects Netgear Wnr1000v3 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-8263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2015-8263 published?: CVE-2015-8263 was published on 2015-12-27 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:netgear:wnr1000v3_firmware:1.0.2.68:*:*:*:*:*:*:*
cpe:2.3:h:netgear:wnr1000v3:*:*:*:*:*:*:*:*

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