October 8, 2026 · Applied Cybernetics Group
CVE-2015-5477 ISC BIND
ISC BIND Data Processing Errors Vulnerability
- Added to KEV
2026-10-08- Federal due date
2026-10-11- Vendor
- ISC
- Product
- BIND
- EPSS
- 99.9th percentile (score 0.996, as of
2026-11-06) - NVD CVSS v3.1
- 7.5 (HIGH)
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2015-5477
CISA short description
ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries.
Required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
NVD description
named in ISC BIND 9.x before 9.9.7-P2 and 9.10.x before 9.10.2-P3 allows remote attackers to cause a denial of service (REQUIRE assertion failure and daemon exit) via TKEY queries.