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Vulnerability details: VCID-1gkw-3zt3-sbb9
Vulnerability ID VCID-1gkw-3zt3-sbb9
Aliases CVE-2026-24401
Summary avahi: Avahi: Denial of Service via recursive CNAME record in mDNS response
Status Published
Exploitability 0.5
Weighted Severity 5.9
Risk 3.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-674 Uncontrolled Recursion
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24401.json
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
epss 0.00043 https://api.first.org/data/v1/epss?cve=CVE-2026-24401
cvssv3.1 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 6.5 https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524
ssvc Track https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524
cvssv3.1 6.5 https://github.com/avahi/avahi/issues/501
ssvc Track https://github.com/avahi/avahi/issues/501
cvssv3.1 6.5 https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3
ssvc Track https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24401.json
https://api.first.org/data/v1/epss?cve=CVE-2026-24401
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-24401
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1126342 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1126342
2432534 https://bugzilla.redhat.com/show_bug.cgi?id=2432534
501 https://github.com/avahi/avahi/issues/501
78eab31128479f06e30beb8c1cbf99dd921e2524 https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524
GHSA-h4vp-5m8j-f6w3 https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24401.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-26T16:14:24Z/ Found at https://github.com/avahi/avahi/commit/78eab31128479f06e30beb8c1cbf99dd921e2524
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/avahi/avahi/issues/501
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-26T16:14:24Z/ Found at https://github.com/avahi/avahi/issues/501
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-01-26T16:14:24Z/ Found at https://github.com/avahi/avahi/security/advisories/GHSA-h4vp-5m8j-f6w3
Exploit Prediction Scoring System (EPSS)
Percentile 0.13259
EPSS Score 0.00043
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:32:20.055483+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-24401.json 38.0.0