Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-1981

19
FAUCET Score

CVE-2023-1981 is a medium-severity vulnerability in the Avahi library, affecting Avahi and related Red Hat and Fedora products. An unprivileged local user can trigger a denial-of-service by making a D-Bus call, causing the Avahi daemon to crash. The attack requires local access and has low complexity, resulting in high availability impact but no confidentiality or integrity compromise. There is currently no public exploit code, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.7-20CPE matchmatch criteria
cpe:2.3:a:avahi:avahi:0.7-20:*:*:*:*:*:*:*
37CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 86th percentile among its peer group of 15,938 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

microsoftpatch availablevia msrc
Product: cbl2 avahi 0.8-2 on CBL Mariner 2.0Fixed in: 0.8-2
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 0.8-2
microsoftpatch availablevia msrc
Product: azl3 avahi 0.8-3 on Azure Linux 3.0Fixed in: 0.8-3
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 0.8-2
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 0.8-3
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 0.8-3
microsoftpatch availablevia msrc
Product: azl3 avahi 0.8-5 on Azure Linux 3.0Fixed in: 0.8-3
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: avahi-0:0.7-21.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: avahi-0:0.8-15.el9
View patch

Vendor Advisories (4)

microsoft2024-Dec/CVE-2023-1981

CVE-2023-1981

Dec 10, 2024
microsoft2024-Nov/CVE-2023-1981

CVE-2023-1981

Nov 12, 2024
microsoft2023-May/CVE-2023-1981Moderate

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.

May 9, 2023
redhatCVE-2023-1981Moderate

avahi: avahi-daemon can be crashed via DBus

Apr 26, 2022

References

lists.debian.org / debian-lts-announce/2024/12/msg00011.html
access.redhat.com / security/cve/CVE-2023-1981
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / lathiat/avahi/issues/375
ExploitIssue TrackingThird Party Advisory