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CVE-2018-5745

20
FAUCET Score

CVE-2018-5745 is a denial-of-service vulnerability affecting multiple versions of ISC BIND, specifically within its "managed-keys" feature. An assertion failure can occur, causing the BIND server to exit, if a trust anchor's keys are replaced with an unsupported algorithm during a key rollover. With a CVSS score of 4.9 (Medium), this vulnerability requires high privileges (PR:H) to exploit over the network (AV:N), resulting in high availability impact (A:H) but no confidentiality or integrity impact. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or KEV entry, and community discussion is minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.9.0, <= 9.10.7CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.11.0, <= 9.11.4CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.12.0, <= 9.12.2CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
>= 9.13.0, <= 9.13.6CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
9.9.3CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.3:s1:*:*:*:supported_preview:*:*

CVSS Data

CVSS version used by this source: 3.0

4.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.28%
Probability of exploitation in next 30 days
EPSS Percentile
81.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0228 is in the 91st percentile among its peer group of 3,565 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: bind-32:9.11.4-16.P2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bind-32:9.11.4-26.P2.el8
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: bind

Vendor Advisories (1)

redhatCVE-2018-5745Low

bind: An assertion failure if a trust anchor rolls over to an unsupported key algorithm when using managed-keys

Feb 21, 2019

References

access.redhat.com / errata/RHSA-2019:3552
kb.isc.org / docs/cve-2018-5745
Third Party Advisory