Bind vulnerabilitiesAnd the versions its exploited flaws hit.
Bind is made by Isc. We track 173 published vulnerabilities in it, across 320 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 8 October 2026. If you run Bind, check your version against the exploited flaws below and patch those first.
The most recent Bind flaw added to the known-exploited list is CVE-2015-5477, on 8 October 2026. We keep watching the known-exploited list.
Which versions of Bind do the exploited flaws hit?
Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.
- CVE-2015-5477Exploited list, 8 Oct 2026
ISC BIND Data Processing Errors Vulnerability
up to 9.9.7up to 9.10.2
Which Bind vulnerabilities are being exploited?
1 flaw is on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.
- 7.8ISC 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.
Which Bind flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- >99%CVE-2023-50387High
Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue.
- >99%
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.
- 93%CVE-2020-8617Medium
Using a specially-crafted message, an attacker may potentially cause a BIND server to reach an inconsistent state if the attacker knows (or successfully guesses) the name of a TSIG key used by the server.
- 89%CVE-2016-2776High
buffer.c in named in ISC BIND 9 before 9.9.9-P3, 9.10.x before 9.10.4-P3, and 9.11.x before 9.11.0rc3 does not properly construct responses, which allows remote attackers to cause a denial of service (assertion...
- 82%CVE-2021-25216Critical
In BIND 9.5.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.11.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.1 of the BIND 9.17...
- 64%CVE-2020-8625High
BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features.
- 63%CVE-2016-2775Medium
ISC BIND 9.x before 9.9.9-P2, 9.10.x before 9.10.4-P2, and 9.11.x before 9.11.0b2, when lwresd or the named lwres option is enabled, allows remote attackers to cause a denial of service (daemon crash) via a long...
- 62%CVE-2016-1286High
named in ISC BIND 9.x before 9.9.8-P4 and 9.10.x before 9.10.3-P4 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a crafted signature record for a DNAME record, related to...
- 60%CVE-2018-5740High
"deny-answer-aliases" is a little-used feature intended to help recursive server operators protect end users against DNS rebinding attacks, a potential method of circumventing the security model used by client browsers.
Running Bind? We'll keep checking.
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1 flaw being exploited affects software Acme tracks
ISC BIND contains a data processing errors vulnerability that could allow remote attackers to cause a denial of service via TKEY queries.
- Matched to
- Bind on Acme's software list
- What to do
- Patch first, then check for signs of use
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 173 published vulnerabilities listed under the name Bind, across 320 versions. The most recent Bind flaw added to the known-exploited list is CVE-2015-5477, on 8 October 2026.
1 is on the list of flaws known to be exploited. The most recently added is CVE-2015-5477.
Each flaw names its own versions, usually as ranges. The newest, CVE-2015-5477, affects up to 9.9.7, up to 9.10.2. The versions for every exploited flaw are listed on this page.
Create a Precursor Intelligence account and track Bind. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.