CVE-2022-3736: isc bind Improper Input Validation
CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2022-3736UBUNTU-CVE-2022-3736DEBIAN-CVE-2022-3736CGA-7x6m-m2p6-9v2cCGA-xjvq-fmj6-v3v5
Published 25-01-2023Last modified 01-04-2025
Vulnerability summary
CVE-2022-3736 is a high (CVSS 7.5) Improper Input Validation vulnerability in isc bind. EPSS estimates a 48.71% chance of exploitation in the next 30 days, higher than 98.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
48.71%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Related 5Timeline
- 25-01-2023PublishedVulnerability first disclosed.
- 01-04-2025Last modifiedVulnerability information updated.
Description
BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 through 9.19.8, and 9.16.12-S1 through 9.16.36-S1.
CVSS metrics
7 scores · 7 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 7 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
48.71%
Chance of exploitation in the next 30 days
Percentile
99%
Versus all other CVEs
30-day change
0.00 pp
From 48.71% on 19-09-2026
19-09-202619-10-2026
EPSS score48.71%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Isc2 products
Alpine1 product
- bind≥ 9.16.12, < 9.16.37-r0 | ≥ 9.16.12, < 9.18.11-r0
Chainguard1 product
- bind< 9.18.11-r0
Debian1 product
- bind9< 1:9.18.11-1
Ubuntu1 product
- bind9< 1:9.18.1-1ubuntu1.3
Wolfi1 product
- bind< 9.18.11-r0
6 vendors · 7 products
