THREATPORT/VULNERABILITY/CVE-2012-3817
HIGH SEVERITY

CVE-2012-3817

Bind vulnerability

CVSS
7.8
EPSS
27.4%
EPSS pct
98th
Exploited
No known
ISC BIND 9.4.x, 9.5.x, 9.6.x, and 9.7.x before 9.7.6-P2; 9.8.x before 9.8.3-P2; 9.9.x before 9.9.1-P2; and 9.6-ESV before 9.6-ESV-R7-P2, when DNSSEC validation is enabled, does not properly initialize the failing-query cache, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) by sending many queries.
Affected vendor
Isc
Affected product
Bind
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2012-07-25

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to complete impact to availability.

Its EPSS score of 27.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2012-3817

  • Confirm whether Isc Bind is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2012-3817.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2012-3817

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2012-3817 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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