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CVE-2022-0396

22
FAUCET Score

CVE-2022-0396 is a denial-of-service vulnerability affecting specific versions of BIND 9, including the Supported Preview Edition, and products from Fedora Project, ISC, NetApp, and Siemens. Specially crafted TCP streams can cause BIND connections to remain in a CLOSE_WAIT state indefinitely, leading to resource exhaustion. With a CVSS score of 5.3 (Medium), it has a low impact on availability and can be exploited remotely with low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion beyond a single Reddit mention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.16.11, < 9.16.27CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:*
>= 9.16.11, < 9.16.27CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:*
>= 9.17.0, <= 9.18.0CPE matchmatch criteria
cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
34CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
35CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.70%
Probability of exploitation in next 30 days
EPSS Percentile
84.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0270 is in the 77th percentile among its peer group of 23,725 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (7)

microsoftpatch availablevia msrc
Product: cbl2 bind 9.16.29-1 on CBL Mariner 2.0Fixed in: 9.16.29-1
microsoftpatch availablevia msrc
Product: cm1 bind 9.16.27-1 on CBL Mariner 1.0Fixed in: 9.16.27-1
microsoftpatch availablevia msrc
Product: 18760-16823Fixed in: 9.16.29-1
microsoftpatch availablevia msrc
Product: 18759-16820Fixed in: 9.16.27-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bind-32:9.16.23-5.el9_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bind9.16-32:9.16.23-0.9.el8.1
View patch
alistgovendor investigatingvia llm_extracted
View patch

Vendor Advisories (3)

redhatCVE-2022-0396Moderate

bind: DoS from specifically crafted TCP packets

Mar 16, 2022
microsoft2022-Mar/CVE-2022-0396Moderate

DoS from specifically crafted TCP packets

Mar 8, 2022
alistgollm-alistgo-949046eca97c7246

DoS from specifically crafted TCP packets

References

cert-portal.siemens.com / productcert/pdf/ssa-637483.pdf
PatchThird Party Advisory
kb.isc.org / v1/docs/cve-2022-0396
MitigationVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/NYD7US4HZRFUGAJ66ZTHFBYVP5N3OQBY
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202210-25
Third Party Advisory
security.netapp.com / advisory/ntap-20220408-0001
Third Party Advisory