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CVE-2017-3138

22
FAUCET Score

CVE-2017-3138 is a denial-of-service vulnerability affecting specific versions of ISC BIND 9, Debian, and NetApp products. A regression in the named control channel allows an authenticated operator to crash the server by sending a null command string, leading to an assertion failure. This medium-severity vulnerability has a CVSS score of 5.3, indicating a network-based attack with high impact on availability, but requiring low privileges and high attack complexity. While there is no known public exploit code or Metasploit module, the vulnerability has garnered some community discussion and media coverage, though it is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:*:*:*:*:*:*:*
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:p1:*:*:*:*:*:*
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:p2:*:*:*:*:*:*
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:p3:*:*:*:*:*:*
9.9.9CPE matchmatch criteria
cpe:2.3:a:isc:bind:9.9.9:p4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.52%
Probability of exploitation in next 30 days
EPSS Percentile
92.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0552 is in the 96th percentile among its peer group of 1,425 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

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-2017-3138Moderate

bind: REQUIRE assertion failure when null command string on control channel is received

Apr 12, 2017

References

kb.isc.org / docs/aa-01471
Vendor Advisory
security.gentoo.org / glsa/201708-01
Third Party Advisory
security.netapp.com / advisory/ntap-20180802-0002
Third Party Advisory
debian.org / security/2017/dsa-3854
Third Party Advisory
securityfocus.com / bid/97657
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038260
Third Party AdvisoryVDB Entry