Is CVE-2023-1981 in the CISA KEV catalog?

No. CVE-2023-1981 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-1981?

CVE-2023-1981 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2023-1981?

CVE-2023-1981 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-1981?

Upgrade avahi on debian 11 to 0.8-5+deb11u3 or later. Fixes are available for 63 affected products.

CVE & CISA-KEV Catalog

CVE-2023-1981

MEDIUM

5.5

CVSS v3

NVD

Description

A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.

CWE-400Resource Exhaustion

How to fix

Remediation Available

avahiDebian

Fixed in:0.8-5+deb11u3CVE-2023-1981

Fixed in:0.8-10CVE-2023-1981

avahiRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahiRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-autoipdRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-autoipdRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-autoipd-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-autoipd-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howlRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howlRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howl-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howl-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howl-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-howl-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sdRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sdRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sd-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sd-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sd-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-compat-libdns_sd-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-debugsourceRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-debugsourceRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-dnsconfd-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-dnsconfd-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glibRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glibRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glib-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glib-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glib-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-glib-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-gobjectRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-gobjectRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-gobject-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-gobject-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-gobject-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-gobject-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-libsRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-libsRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-libs-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-libs-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-toolsRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-toolsRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-tools-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-tools-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-uiRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-uiRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-ui-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-ui-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-ui-develRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-ui-develRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-ui-gtk3Red Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-ui-gtk3Rocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahi-ui-gtk3-debuginfoRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-ui-gtk3-debuginfoRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-ui-tools-debuginfoRed Hat / RHEL

Fixed in:0:0.8-15.el9RHSA-2023:6707

avahi-ui-tools-debuginfoRocky

Fixed in:0:0.8-15.el9RHSA-2023:6707

python3-avahiRocky

Fixed in:0:0.7-21.el8RHSA-2023:7190

python3-avahiRed Hat / RHEL

Fixed in:0:0.7-21.el8RHSA-2023:7190

avahiUbuntu

Fixed in:0.6.31-4ubuntu1.3+esm2USN-6129-2

Fixed in:0.6.32~rc+dfsg-1ubuntu2.3+esm2USN-6129-2

Fixed in:0.7-3.1ubuntu1.3+esm1USN-6129-2

Fixed in:0.7-4ubuntu7.2USN-6129-1

Fixed in:0.8-5ubuntu5.1USN-6129-1

Fixed in:0.8-6ubuntu1.22.10.1USN-6129-1

Fixed in:0.8-6ubuntu1.23.04.1USN-6129-1

avahi-daemonUbuntu

Fixed in:0.6.31-4ubuntu1.3+esm2USN-6129-2

Fixed in:0.6.32~rc+dfsg-1ubuntu2.3+esm2USN-6129-2

Fixed in:0.7-3.1ubuntu1.3+esm1USN-6129-2

Fixed in:0.7-4ubuntu7.2USN-6129-1

Fixed in:0.8-5ubuntu5.1USN-6129-1

Fixed in:0.8-6ubuntu1.22.10.1USN-6129-1

Fixed in:0.8-6ubuntu1.23.04.1USN-6129-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory2

Other references1

lists.debian.org

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-03.