CVE-2015-5477
ISC BIND Data Processing Errors Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 11 October 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 99.58% probability · 100th percentile
- Public exploits
- 2 in Exploit-DB · verified · first 1 August 2015
- CISA KEV
- Listed 8 October 2026 · due 11 October 2026
- Weakness
- CWE-19, CWE-617
- Affected
- juniper/junos · fedoraproject/fedora · redhat/enterprise linux · redhat/enterprise linux aus · debian/debian linux · oracle/vm server · oracle/solaris · hp/hp-ux · canonical/ubuntu linux · netapp/clustered data ontap · apple/os x server · hpe/dns · hp/openvms · hpe/vcx · suse/linux enterprise debuginfo · opensuse/evergreen · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise server · suse/linux enterprise software development kit · +1 more
- Source
- cve@mitre.org
EPSS moved from 99.4% on 10 October 2026 to 99.6% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
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. This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://web.archive.org/web/20150729014733/https://kb.isc.org/article/AA-01272 ; https://access.redhat.com/errata/RHSA-2015:1513.html; https://supportportal.juniper.net/s/article/2016-01-Security-Bulletin-Junos-Vulnerability-in-ISC-BIND-named-CVE-2015-5477 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2015-5477
Public exploits (2)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10718Mitigation, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163006.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163007.htmlMailing List, Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163015.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00043.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00045.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00048.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00050.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00033.htmlMailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144000632319155&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144017354030745&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144181171013996&w=2Mailing List, Third Party Advisory
- http://marc.info/?l=bugtraq&m=144294073801304&w=2Mailing List, Third Party Advisory
- http://packetstormsecurity.com/files/132926/BIND-TKEY-Query-Denial-Of-Service.htmlThird Party Advisory, VDB Entry
- http://rhn.redhat.com/errata/RHSA-2015-1513.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1514.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-1515.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0078.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0079.htmlThird Party Advisory
- http://www.debian.org/security/2015/dsa-3319Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlThird Party Advisory
- http://www.securityfocus.com/bid/76092Third Party Advisory
- http://www.securitytracker.com/id/1033100Broken Link
- http://www.ubuntu.com/usn/USN-2693-1Third Party Advisory
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04789415Third Party Advisory
- https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952480Third Party Advisory
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05095918Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.