CVE entry · CVE-2015-5477
CVE-2015-5477: ISC BIND Data Processing Errors Vulnerability
ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries.
- Actively exploited: added to CISA’s KEV catalog on October 8, 2026.
- Use by ransomware: not established so far.
- Remediation deadline for US federal agencies: October 11, 2026.
Description from CISA’s KEV catalog.
What to do
- Check whether your estate includes ISC BIND, including internet-facing devices.
- Apply the vendor’s patch or mitigations (references below). Failing that, isolate the product or stop using it, as CISA requires of US federal agencies.
- An exploited vulnerability has often been used before it was fixed: look for signs of compromise, especially on internet-facing devices.
References
- Vendor advisory or reference cited by CISA (access.redhat.com)
- Vendor advisory or reference cited by CISA (supportportal.juniper.net)
- NVD entry (NIST)
- CISA KEV catalog