CVE-2023-38470

MEDIUMNVD 6.26.2—

6.2

A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function.

CVSS v3: 6.2
EG Score: 6.2(medium)
EPSS: 1.2%
KEV: Not listed

Published

November 2, 2023

Last Modified

November 3, 2025

References (5)

secalert@redhathttps://access.redhat.com/security/cve/CVE-2023-38470
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2191690
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-38470
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2191690
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/12/msg00011.html

Patch Availability(5)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	python3-avahi (0.8-10ubuntu1.1) @ mantic	2026-05-24	ubuntu
redhat	avahi-0:0.8-20.el9	2024-04-30	redhat
redhat	avahi-0:0.7-20.el8_8.4	2024-01-30	redhat
redhat	avahi-0:0.7-20.el8_6.3	2024-01-25	redhat
redhat	avahi-0:0.7-21.el8_9.1	2023-12-14	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-617

All Vendor Advisories

(6)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-02 20:12 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-06-01 13:51 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-29 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-24 16:52 UTCepss_batch
2026-05-24 14:36 UTCEG score recompute
2026-05-24 14:36 UTCVendor advisory
2026-05-24 14:36 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2023-38470?

CVE-2023-38470 is a medium vulnerability published on November 2, 2023. A vulnerability was found in Avahi. A reachable assertion exists in the avahiescapelabel() function.

When was CVE-2023-38470 disclosed?

CVE-2023-38470 was first published in the National Vulnerability Database on November 2, 2023, with the most recent update on November 3, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2023-38470 actively exploited?

CVE-2023-38470 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2023-38470?

CVE-2023-38470 has a CVSS v3 base score of 6.2 (NVD).

How do I remediate CVE-2023-38470?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-38470, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-38470

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