CVE-2015-5477: ISC BIND Data Processing

Last refreshed2026-10-09

Status: KEV | Advisory ID: CVE-2015-5477

Key Details

CVE	CVE-2015-5477
Vulnerability Name	ISC BIND Data Processing Errors Vulnerability
Affected products	ISC BIND
Exploitation status	Listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating confirmed active exploitation.
KEV listing	Added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2026-10-08.
Federal remediation deadline	2026-10-11 (CISA KEV, Binding Operational Directive).

Affected Products, Subsystems & Sectors

Vendor	Product	Affected Versions	Patch Status
ISC	BIND

Vendor

Product

Affected Versions

Patch Status

ISC

BIND

Subsystems	General OT
Sectors	Multiple

What to Know

ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries.

What to Do

Monitor ISC's web page for any future patch releases.

References

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2015-5477
CVE	https://www.cve.org/CVERecord?id=CVE-2015-5477

Source

Reference

NVD

https://nvd.nist.gov/vuln/detail/CVE-2015-5477

CVE

https://www.cve.org/CVERecord?id=CVE-2015-5477

KEV Required Action

Field	Value
KEV Link	https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Date Added to KEV	2026-10-08
Required Action Due Date	2026-10-11
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.

Field

Value

KEV Link

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

Date Added to KEV

2026-10-08

Required Action Due Date

2026-10-11

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.