CVE-2015-5477

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.994 · 100 %ileexploit · functionalDEEUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 10 exploits · functional

Likely / severe?

99.4% (100th) EPSS

CVSS 7.8 · high

Is it mine?

91 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · cert_bund

added 2026-10-08remediate by 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.

EPSS · scored 2026-10-22

ISC BIND Data Processing Errors Vulnerability

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

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-19USprimaryCWE-617US

exploits (10)

Public proof-of-concept and weaponised exploit code.

EDB-37721ISC BIND 9 - TKEY (PoC)functional · exploit_db
auxiliary/dos/dns/bind_tkeyBIND TKEY Query Denial of Servicefunctional · metasploit
EDB-37723ISC BIND 9 - TKEY Remote Denial of Service (PoC)PoC · exploit_db
elceef/tkeypocPoC exploit code for CVE-2015-5477 BIND9 TKEY remote DoS vulnerabilityPoC · poc_in_github
hmlio/vaas-cve-2015-5477Vulnerability as a service: showcasing CVS-2015-5447, a DDoS condition in the bind9 softwarePoC · poc_in_github
ilanyu/cve-2015-5477PoC exploit for CVE-2015-5477 in phpPoC · poc_in_github

affected products (91)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Dell Avamarall versionscert_bundDEcpe:/a:dell:avamar:-
Dell NetWorker virtualall versionscert_bundDEcpe:/a:dell:networker:virtual
F5 BIG-IP Access Policy Managerall versionscert_bundDEcpe:/a:f5:big-ip_access_policy_manager:-
F5 BIG-IP Analyticsall versionscert_bundDEcpe:/a:f5:big-ip_analytics:-
F5 BIG-IP Application Security Managerall versionscert_bundDEcpe:/a:f5:big-ip_application_security_manager:-
F5 BIG-IP Edge Gatewayall versionscert_bundDEcpe:/a:f5:big-ip_edge_gateway:-
F5 BIG-IP Global Traffic Managerall versionscert_bundDEcpe:/a:f5:big-ip_global_traffic_manager:-
F5 BIG-IP Link Controllerall versionscert_bundDEcpe:/a:f5:big-ip_link_controller:-
F5 BIG-IP Local Traffic Managerall versionscert_bundDEcpe:/a:f5:big-ip_local_traffic_manager:-
F5 BIG-IP Protocol Security Managerall versionscert_bundDEcpe:/a:f5:protocol_security_manager:-
F5 Enterprise Managerall versionscert_bundDEcpe:/a:f5:enterprise_manager:-
F5 Policy Enforcement Managerall versionscert_bundDEcpe:/a:f5:big-ip_policy_enforcement_manager:-
F5 WebAcceleratorall versionscert_bundDEcpe:/h:f5:big-ip_webaccelerator:-
FreeBSD Project FreeBSD OSall versionscert_bundDEcpe:/o:freebsd:freebsd:-
HPE HP-UXall versionscert_bundDEcpe:/o:hp:hp-ux:-
HPE NonStop Serverall versionscert_bundDEcpe:/h:hp:nonstop_server:-
HPE OpenVMSall versionscert_bundDEcpe:/o:hp:openvms:-
IBM AIX 6.1all versionscert_bundDEcpe:/o:ibm:aix:6.1
IBM AIX 7.1all versionscert_bundDEcpe:/o:ibm:aix:7.1

showing 20 of 91

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-1181Internet Systems Consortium BIND: Schwachstelle ermöglicht Denial of ServiceDeutsch2015-07-28csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Internet Systems Consortium BIND ausnutzen, um einen Denial of Service Angriff durchzuführen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund NVD CVE.org MITRE

published 2015-07-29modified 2026-10-09

related (367)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2017-8570US	high7.8OT critical	89.9% (100th)	KEV	2017-07-11
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Remote Code Execution Vulnerability". This CVE…
CVE-2017-0262US	high7.8OT critical	81.0% (100th)	KEV	2017-05-12
Microsoft Office 2010 SP2, Office 2013 SP1, and Office 2016 allow a remote code execution vulnerability when the software fails to properly handle objects in memory, aka "Office Re…
CVE-2015-1770US	high8.8OT critical	35.0% (98th)	KEV	2015-06-10
Microsoft Office 2013 SP1 and 2013 RT SP1 allows remote attackers to execute arbitrary code via a crafted Office document, aka "Microsoft Office Uninitialized Memory Use Vulnerabil…
CVE-2015-1671US	high9.3OT critical	48.8% (99th)	KEV	2015-05-13
The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 20…
CVE-2016-3236US	critical9.8	76.8% (100th)	Exploit	2016-06-16
The Web Proxy Auto Discovery (WPAD) protocol implementation in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold…

+362 more

references (86)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan