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CVE-2019-6467

21
FAUCET Score

CVE-2019-6467 is a programming error in the nxdomain-redirect feature of ISC BIND versions 9.12.0-9.12.4, 9.14.0, and all 9.13 development releases. This vulnerability can lead to an assertion failure, causing a denial of service, particularly if the server is also serving a local copy of the root zone. With a CVSS score of 7.5 (High), it is easily exploitable over the network without authentication, resulting in high availability impact. There is currently no known public exploit code, nor is there evidence of active exploitation or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.12.0, <= 9.12.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.13.0, <= 9.13.7CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
9.14.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.14.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.46%
Probability of exploitation in next 30 days
EPSS Percentile
91.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0546 is in the 86th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-6467Moderate

bind: flaw in nxredirect can cause assertion failure

Apr 24, 2019

References

kb.isc.org / docs/cve-2019-6467
Third Party Advisory
synology.com / security/advisory/Synology_SA_19_20