Is CVE-2011-1002 being actively exploited?

CVE-2011-1002 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-1002?

CVE-2011-1002 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2011-1002

MEDIUM · CVSS 5.0EPSS 29.4%EU EUVD

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.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-835
EPSS score: 29.4% (98th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-1019)
Published: February 22, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-1019 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
avahi / avahi
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
debian / debian linux
debian / debian linux
fedoraproject / fedora
redhat / enterprise linux
redhat / enterprise linux

Certified products that may be affected

7 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Red Hat Enterprise Linux libgcrypt Cryptographic Module v4.0 [1] and Red Hat Enterprise Linux libgcrypt Cryptographic Module v5.0 [2] - Red Hat®, Inc. - FIPS 140 2657 - historical
Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
Red Hat Enterprise Linux 5 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 1385 - historical
Red Hat Enterprise Linux 5 OpenSwan Cryptographic Module - Red Hat®, Inc. - FIPS 140 1386 - historical
Red Hat Enterprise Linux 5 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 1387 - historical

See all 7 in the Security Certifications Explorer.

References

http://avahi.org/ticket/325(Broken Link)
http://git.0pointer.de/?p=avahi.git%3Ba=commit%3Bh=46109dfec75534fe270c0ab902576f685d5ab3a6(Broken Link)
http://lists.fedoraproject.org/pipermail/package-announce/2011-March/055858.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html(Third Party Advisory)
http://openwall.com/lists/oss-security/2011/02/18/1(Mailing List, Third Party Advisory)
http://openwall.com/lists/oss-security/2011/02/18/4(Mailing List, Third Party Advisory)
http://osvdb.org/70948(Broken Link)
http://secunia.com/advisories/43361(Broken Link, Vendor Advisory)
http://secunia.com/advisories/43465(Broken Link)
http://secunia.com/advisories/43605(Broken Link)
http://secunia.com/advisories/43673(Broken Link)
http://secunia.com/advisories/44131(Broken Link)
http://ubuntu.com/usn/usn-1084-1(Third Party Advisory)
http://www.debian.org/security/2011/dsa-2174(Third Party Advisory)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:037(Broken Link)
http://www.mandriva.com/security/advisories?name=MDVSA-2011:040(Broken Link)
http://www.openwall.com/lists/oss-security/2011/02/22/9(Mailing List, Third Party Advisory)
http://www.redhat.com/support/errata/RHSA-2011-0436.html(Broken Link)
http://www.redhat.com/support/errata/RHSA-2011-0779.html(Broken Link)
http://www.securityfocus.com/bid/46446(Broken Link, Third Party Advisory, VDB Entry)
http://www.vupen.com/english/advisories/2011/0448(Broken Link, Vendor Advisory)
http://www.vupen.com/english/advisories/2011/0499(Broken Link, Vendor Advisory)
http://www.vupen.com/english/advisories/2011/0511(Broken Link)
http://www.vupen.com/english/advisories/2011/0565(Broken Link)
http://www.vupen.com/english/advisories/2011/0601(Broken Link)
http://www.vupen.com/english/advisories/2011/0670(Broken Link)
http://www.vupen.com/english/advisories/2011/0969(Broken Link)
http://xorl.wordpress.com/2011/02/20/cve-2011-1002-avahi-daemon-remote-denial-of-service/(Exploit, Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=667187(Issue Tracking, Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65524(Not Applicable)
https://exchange.xforce.ibmcloud.com/vulnerabilities/65525(Third Party Advisory, VDB Entry)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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