Avahi
Products
2- 23 CVEs
- 7 CVEs
Recent CVEs
26| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2024-52616 | Med | 0.35 | 5.3 | 0.01 | Nov 21, 2024 | A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs. | ||
| CVE-2024-52615 | Med | 0.34 | 5.3 | 0.01 | Nov 21, 2024 | A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected. | ||
| CVE-2026-34933 | Med | 0.29 | 5.5 | 0.00 | Apr 3, 2026 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been… | ||
| CVE-2008-5081 | 0.08 | — | 0.59 | Dec 17, 2008 | The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in avahi-daemon in Avahi before 0.6.24 allows remote attackers to cause a denial of service (crash) via a crafted mDNS packet with a source port of 0, which triggers an assertion failure. | |||
| CVE-2011-1002 | 0.02 | — | 0.29 | Feb 22, 2011 | avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty mDNS (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244. | |||
| CVE-2026-24401 | 0.00 | — | 0.00 | Jan 24, 2026 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below, avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record, where the… | |||
| CVE-2025-68471 | 0.00 | — | 0.00 | Jan 12, 2026 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart. | |||
| CVE-2025-68468 | 0.00 | — | 0.00 | Jan 12, 2026 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short… | |||
| CVE-2025-68276 | 0.00 | — | 0.00 | Jan 12, 2026 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag… | |||
| CVE-2025-59529 | 0.00 | — | 0.00 | Dec 18, 2025 | Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions up to and including 0.9-rc2, the simple protocol server ignores the documented client limit and accepts unlimited connections, allowing for easy local DoS.… | |||
| CVE-2023-38473 | 0.00 | — | 0.00 | Nov 2, 2023 | A vulnerability was found in Avahi. A reachable assertion exists in the avahi_alternative_host_name() function. | |||
| CVE-2023-38472 | 0.00 | — | 0.00 | Nov 2, 2023 | A vulnerability was found in Avahi. A reachable assertion exists in the avahi_rdata_parse() function. | |||
| CVE-2023-38471 | 0.00 | — | 0.00 | Nov 2, 2023 | A vulnerability was found in Avahi. A reachable assertion exists in the dbus_set_host_name function. | |||
| CVE-2023-38470 | 0.00 | — | 0.00 | Nov 2, 2023 | A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function. | |||
| CVE-2023-38469 | 0.00 | — | 0.00 | Nov 2, 2023 | A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record. | |||
| CVE-2023-1981 | 0.00 | — | 0.00 | May 26, 2023 | 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. | |||
| CVE-2021-3468 | 0.00 | — | 0.00 | Jun 2, 2021 | A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from… | |||
| CVE-2021-3502 | 0.00 | — | 0.00 | May 7, 2021 | A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest… | |||
| CVE-2021-26720 | 0.00 | — | 0.00 | Feb 17, 2021 | avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create arbitrary empty files via a symlink attack on files under /run/avahi-daemon. NOTE:… | |||
| CVE-2010-2244 | 0.00 | — | 0.03 | Jul 8, 2010 | The AvahiDnsPacket function in avahi-core/socket.c in avahi-daemon in Avahi 0.6.16 and 0.6.25 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a DNS packet with an invalid checksum followed by a DNS packet with a valid checksum, a… |
- risk 0.35cvss 5.3epss 0.01
A flaw was found in the Avahi-daemon, where it initializes DNS transaction IDs randomly only once at startup, incrementing them sequentially after that. This predictable behavior facilitates DNS spoofing attacks, allowing attackers to guess transaction IDs.
- risk 0.34cvss 5.3epss 0.01
A flaw was found in Avahi-daemon, which relies on fixed source ports for wide-area DNS queries. This issue simplifies attacks where malicious DNS responses are injected.
- risk 0.29cvss 5.5epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. Prior to version 0.9-rc4, any unprivileged local user can crash avahi-daemon by sending a single D-Bus method call with conflicting publish flags. This issue has been…
- CVE-2008-5081Dec 17, 2008risk 0.08cvss —epss 0.59
The originates_from_local_legacy_unicast_socket function (avahi-core/server.c) in avahi-daemon in Avahi before 0.6.24 allows remote attackers to cause a denial of service (crash) via a crafted mDNS packet with a source port of 0, which triggers an assertion failure.
- CVE-2011-1002Feb 22, 2011risk 0.02cvss —epss 0.29
avahi-core/socket.c in avahi-daemon in Avahi before 0.6.29 allows remote attackers to cause a denial of service (infinite loop) via an empty mDNS (1) IPv4 or (2) IPv6 UDP packet to port 5353. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-2244.
- CVE-2026-24401Jan 24, 2026risk 0.00cvss —epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below, avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record, where the…
- CVE-2025-68471Jan 12, 2026risk 0.00cvss —epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending 2 unsolicited announcements with CNAME resource records 2 seconds apart.
- CVE-2025-68468Jan 12, 2026risk 0.00cvss —epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, avahi-daemon can be crashed by sending unsolicited announcements containing CNAME resource records pointing it to resource records with short…
- CVE-2025-68276Jan 12, 2026risk 0.00cvss —epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In 0.9-rc2 and earlier, an unprivileged local users can crash avahi-daemon (with wide-area disabled) by creating record browsers with the AVAHI_LOOKUP_USE_WIDE_AREA flag…
- CVE-2025-59529Dec 18, 2025risk 0.00cvss —epss 0.00
Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions up to and including 0.9-rc2, the simple protocol server ignores the documented client limit and accepts unlimited connections, allowing for easy local DoS.…
- CVE-2023-38473Nov 2, 2023risk 0.00cvss —epss 0.00
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_alternative_host_name() function.
- CVE-2023-38472Nov 2, 2023risk 0.00cvss —epss 0.00
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_rdata_parse() function.
- CVE-2023-38471Nov 2, 2023risk 0.00cvss —epss 0.00
A vulnerability was found in Avahi. A reachable assertion exists in the dbus_set_host_name function.
- CVE-2023-38470Nov 2, 2023risk 0.00cvss —epss 0.00
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function.
- CVE-2023-38469Nov 2, 2023risk 0.00cvss —epss 0.00
A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record.
- CVE-2023-1981May 26, 2023risk 0.00cvss —epss 0.00
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.
- CVE-2021-3468Jun 2, 2021risk 0.00cvss —epss 0.00
A flaw was found in avahi in versions 0.6 up to 0.8. The event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work function, allowing a local attacker to trigger an infinite loop. The highest threat from…
- CVE-2021-3502May 7, 2021risk 0.00cvss —epss 0.00
A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest…
- CVE-2021-26720Feb 17, 2021risk 0.00cvss —epss 0.00
avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create arbitrary empty files via a symlink attack on files under /run/avahi-daemon. NOTE:…
- CVE-2010-2244Jul 8, 2010risk 0.00cvss —epss 0.03
The AvahiDnsPacket function in avahi-core/socket.c in avahi-daemon in Avahi 0.6.16 and 0.6.25 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a DNS packet with an invalid checksum followed by a DNS packet with a valid checksum, a…