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CVE-2022-3488

named may terminate unexpectedly when processing ECS options in repeated responses to iterative queries

High7.5EPSS 19.0%
Published
Updated
Reserved
Assigned by
isc

Description

Processing of repeated responses to the same query, where both responses contain ECS pseudo-options, but where the first is broken in some way, can cause BIND to exit with an assertion failure. 'Broken' in this context is anything that would cause the resolver to reject the query response, such as a mismatch between query and answer name. This issue affects BIND 9 versions 9.11.4-S1 through 9.11.37-S1 and 9.16.8-S1 through 9.16.36-S1.

Timeline

  1. ID reserved

    By isc

  2. · 3 months later

    Published

  3. · 2 years later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-3488, by who scored it
Scored byCVSSScoreVector
iscCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
19.0% · top 2.7% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • ISC · BIND 9

    • affected 9.11.4-S1 – ≤ 9.11.37-S1
    • affected 9.16.8-S1 – ≤ 9.16.36-S1

What to do

Solution: Upgrade to the patched release most closely related to your current version of BIND 9: 9.16.37-S1.

Workaround: No workarounds known.

Exploitation: We are not aware of any active exploits.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .