Vendor

ISC

1 of 6 ISC CVEs in Patchfirst (17%) are in of vulnerabilities exploited in the wild.

CVEs: 6
In CISA KEV: 117%
Known ransomware use: 0
Median days to KEV: 4,089; from publication
Latest KEV listing: 8 Oct 2026

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Products

In KEVOther CVEs

ProductKEVCVEs
BIND In KEV: 1 CVEs: 1
BIND9 In KEV: 0 CVEs: 3
BIND 9 In KEV: 0 CVEs: 1
ISC DHCP In KEV: 0 CVEs: 1

Top ATT&CK techniques

What attackers do with ISC CVEs

TechniqueCVEs
T1190Exploit Public-Facing Application CVEs: 1
T1499.004Application or System Exploitation CVEs: 1

Open in ATT&CK Navigator

A layer for MITRE’s ATT&CK Navigator: techniques scored by the highest Patchfirst priority among their CVEs, neutral to red, with the CVE ids in each comment. “Open in Navigator” loads https://patchfirst.co/navigator/vendor/isc.json. Or download it and in Navigator choose Open Existing Layer → Upload from local.

Counts are ISC CVEs linked to the technique. Each link’s provenance is on the CVE page.

ISC CVEs

6 CVEs, by priority

CVE-2015-5477ISC BIND Data Processing Errors Vulnerability
ISC · BINDKEVPublic exploitHigh · 7.5T1190Exploit Public-Facing Application T1499.004Application or System Exploitation
99.6%Top 0.05%
68.2priority
CVE-2020-8617A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c
ISC · BIND9Public exploitHigh · 7.5
93.3%Top 0.16%
30.9priority
CVE-2018-5740A flaw in the "deny-answer-aliases" feature can cause an assertion failure in named
ISC · BIND 9Public exploitHigh · 7.5
60.2%Top 0.86%
30.1priority
CVE-2021-25216A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack
ISC · BIND9High · 8.1
83.0%Top 0.33%
26.3priority
CVE-2020-8625A vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack
ISC · BIND9High · 8.1
64.2%Top 0.77%
26.2priority
CVE-2017-3144Failure to properly clean up closed OMAPI connections can exhaust available sockets
ISC · ISC DHCPMedium · 5.3
72.7%Top 0.55%
23.6priority