How severe is CVE-2016-1284?

CVE-2016-1284 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2016-1284 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-1284?

CVE-2016-1284 primarily affects Isc Bind. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-1284?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-1284 published?

CVE-2016-1284 was published on 2016-02-04 and last updated on 2026-06-17.

CVE-2016-1284

CVE-2016-1284 is a medium-severity vulnerability in Isc Bind with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
CVSS v2: 2.6
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Isc Bind
Published: 2016-02-04
Last modified: 2026-06-17

Description

rdataset.c in ISC BIND 9 Supported Preview Edition 9.9.8-S before 9.9.8-S5, when nxdomain-redirect is enabled, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via crafted flag values in a query.

Frequently asked questions

What is CVE-2016-1284?: rdataset.c in ISC BIND 9 Supported Preview Edition 9.9.8-S before 9.9.8-S5, when nxdomain-redirect is enabled, allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via crafted flag values in a query.
How severe is CVE-2016-1284?: CVE-2016-1284 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2016-1284 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-1284?: CVE-2016-1284 primarily affects Isc Bind. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-1284?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-1284 published?: CVE-2016-1284 was published on 2016-02-04 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:isc:bind:9.9.8:s1:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.9.8:s2:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.9.8:s3:*:*:*:*:*:*
cpe:2.3:a:isc:bind:9.9.8:s4:*:*:*:*:*:*

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