How severe is CVE-2014-3859?

CVE-2014-3859 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-3859 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3859?

CVE-2014-3859 affects Isc Bind. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3859?

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

When was CVE-2014-3859 published?

CVE-2014-3859 was published on 2014-06-13 and last updated on 2026-06-17.

CVE-2014-3859

CVE-2014-3859 is a medium-severity vulnerability in Isc Bind with a CVSS 2.0 base score of 5.0. 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 2.0 base score 5.0)
EPSS exploit prediction: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Isc Bind
Published: 2014-06-13
Last modified: 2026-06-17

Description

libdns in ISC BIND 9.10.0 before P2 does not properly handle EDNS options, which allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via a crafted packet, as demonstrated by an attack against named, dig, or delv.

Frequently asked questions

What is CVE-2014-3859?: libdns in ISC BIND 9.10.0 before P2 does not properly handle EDNS options, which allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via a crafted packet, as demonstrated by an attack against named, dig, or delv.
How severe is CVE-2014-3859?: CVE-2014-3859 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-3859 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3859?: CVE-2014-3859 affects Isc Bind. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3859?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3859 published?: CVE-2014-3859 was published on 2014-06-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:isc:bind:9.10.0:*:*:*:*:*:*:*

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CVE-2001-0010 — Critical (CVSS 10.0): Buffer overflow in transaction signature (TSIG) handling code in BIND 8 allows remote attackers to gain root privileges.
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