CVE-2013-4854

The RFC 5011 implementation in rdata.c in ISC BIND 9.7.x and 9.8.x before 9.8.5-P2, 9.8.6b1, 9.9.x before 9.9.3-P2, and 9.9.4b1, and DNSco BIND 9.9.3-S1 before 9.9.3-S1-P1 and 9.9.4-S1b1, allows remote attackers to cause a denial of service (assertion failure and named daemon exit) via a query with a malformed RDATA section that is not properly handled during construction of a log message, as exploited in the wild in July 2013.

Published: 2013-07-29 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2013-4854 is rated Moderate Risk (60.6/100): CVSS High severity, with high exploitation likelihood (EPSS 34.15%, 98th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4854

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 51.15% 34.15% -17.00%
2 2026-04-18 53.70% 51.15% -2.55%
3 2026-03-04 53.70%

Full EPSS history (47 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4854

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
10.0 6.9 [email protected]

Weakness enumeration for CVE-2013-4854

OS Trackers for CVE-2013-4854

vendor priority summary link
debian not yet assigned CVE-2013-4854 not yet assigned priority: Debian including 1 source packages (bind9), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4854
gentoo normal CVE-2013-4854: 1 GLSA(s) (201401-34), 1 atom(s) (net-dns/bind); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-4854
redhat high https://access.redhat.com/security/cve/CVE-2013-4854
suse medium CVE-2013-4854 severity moderate: SUSE including 155 source package names (bind-9.10.3P4-21.1, bind-9.11.2-1.24, …), 242 product×package rows across 38 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 11 SP3, … (38 product lines)): Fixed 242. https://www.suse.com/security/cve/CVE-2013-4854/
ubuntu high CVE-2013-4854 high priority: Ubuntu including 1 source packages (bind9), 5 status rows across 5 suites (lucid, precise, quantal, raring, upstream): released 5. https://ubuntu.com/security/CVE-2013-4854

Affected software / configurations for CVE-2013-4854

Vendor Product Version Raw CPE
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:*:*:*:*:*:*:*
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:b1:*:*:*:*:*:*
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:p1:*:*:*:*:*:*
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:p2:*:*:*:*:*:*
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:rc1:*:*:*:*:*:*
isc bind 9.7.0 cpe:2.3:a:isc:bind:9.7.0:rc2:*:*:*:*:*:*
isc bind 9.7.1 cpe:2.3:a:isc:bind:9.7.1:*:*:*:*:*:*:*
isc bind 9.7.1 cpe:2.3:a:isc:bind:9.7.1:p1:*:*:*:*:*:*
isc bind 9.7.1 cpe:2.3:a:isc:bind:9.7.1:p2:*:*:*:*:*:*
isc bind 9.7.1 cpe:2.3:a:isc:bind:9.7.1:rc1:*:*:*:*:*:*
isc bind 9.7.2 cpe:2.3:a:isc:bind:9.7.2:*:*:*:*:*:*:*
isc bind 9.7.2 cpe:2.3:a:isc:bind:9.7.2:p1:*:*:*:*:*:*
isc bind 9.7.2 cpe:2.3:a:isc:bind:9.7.2:p2:*:*:*:*:*:*
isc bind 9.7.2 cpe:2.3:a:isc:bind:9.7.2:p3:*:*:*:*:*:*
isc bind 9.7.2 cpe:2.3:a:isc:bind:9.7.2:rc1:*:*:*:*:*:*
isc bind 9.7.3 cpe:2.3:a:isc:bind:9.7.3:*:*:*:*:*:*:*
isc bind 9.7.3 cpe:2.3:a:isc:bind:9.7.3:b1:*:*:*:*:*:*
isc bind 9.7.3 cpe:2.3:a:isc:bind:9.7.3:p1:*:*:*:*:*:*
isc bind 9.7.3 cpe:2.3:a:isc:bind:9.7.3:rc1:*:*:*:*:*:*
isc bind 9.7.4 cpe:2.3:a:isc:bind:9.7.4:*:*:*:*:*:*:*
isc bind 9.7.4 cpe:2.3:a:isc:bind:9.7.4:b1:*:*:*:*:*:*
isc bind 9.7.4 cpe:2.3:a:isc:bind:9.7.4:p1:*:*:*:*:*:*
isc bind 9.7.4 cpe:2.3:a:isc:bind:9.7.4:rc1:*:*:*:*:*:*
isc bind 9.7.5 cpe:2.3:a:isc:bind:9.7.5:*:*:*:*:*:*:*
isc bind 9.7.5 cpe:2.3:a:isc:bind:9.7.5:b1:*:*:*:*:*:*
isc bind 9.7.5 cpe:2.3:a:isc:bind:9.7.5:rc1:*:*:*:*:*:*
isc bind 9.7.5 cpe:2.3:a:isc:bind:9.7.5:rc2:*:*:*:*:*:*
isc bind 9.7.6 cpe:2.3:a:isc:bind:9.7.6:*:*:*:*:*:*:*
isc bind 9.7.6 cpe:2.3:a:isc:bind:9.7.6:p1:*:*:*:*:*:*
isc bind 9.7.6 cpe:2.3:a:isc:bind:9.7.6:p2:*:*:*:*:*:*
isc bind 9.7.7 cpe:2.3:a:isc:bind:9.7.7:*:*:*:*:*:*:*
suse suse_linux_enterprise_software_development_kit 11.0 cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:11.0:sp2:*:*:*:*:*:*
suse suse_linux_enterprise_software_development_kit 11.0 cpe:2.3:a:suse:suse_linux_enterprise_software_development_kit:11.0:sp3:*:*:*:*:*:*
novell suse_linux 11 cpe:2.3:o:novell:suse_linux:11:*:server:*:*:*:*:*
isc dnsco_bind 9.9.3 cpe:2.3:a:isc:dnsco_bind:9.9.3:s1:*:*:*:*:*:*
isc dnsco_bind 9.9.4 cpe:2.3:a:isc:dnsco_bind:9.9.4:s1b1:*:*:*:*:*:*
opensuse opensuse 11.4 cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:*:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:a1:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:a2:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:a3:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:b1:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:b2:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:rc1:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:rc2:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:rc3:*:*:*:*:*:*
isc bind 9.9.0 cpe:2.3:a:isc:bind:9.9.0:rc4:*:*:*:*:*:*
isc bind 9.9.1 cpe:2.3:a:isc:bind:9.9.1:*:*:*:*:*:*:*
isc bind 9.9.1 cpe:2.3:a:isc:bind:9.9.1:p1:*:*:*:*:*:*
isc bind 9.9.1 cpe:2.3:a:isc:bind:9.9.1:p2:*:*:*:*:*:*
isc bind 9.9.2 cpe:2.3:a:isc:bind:9.9.2:*:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:*:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:b1:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:b2:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:p1:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:rc1:*:*:*:*:*:*
isc bind 9.9.3 cpe:2.3:a:isc:bind:9.9.3:rc2:*:*:*:*:*:*
freebsd freebsd 8.0 cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*
freebsd freebsd 8.1 cpe:2.3:o:freebsd:freebsd:8.1:*:*:*:*:*:*:*
freebsd freebsd 8.2 cpe:2.3:o:freebsd:freebsd:8.2:*:*:*:*:*:*:*
freebsd freebsd 8.3 cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:*
freebsd freebsd 8.4 cpe:2.3:o:freebsd:freebsd:8.4:*:*:*:*:*:*:*
freebsd freebsd 9.0 cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*
freebsd freebsd 9.1 cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*
freebsd freebsd 9.1 cpe:2.3:o:freebsd:freebsd:9.1:p4:*:*:*:*:*:*
freebsd freebsd 9.1 cpe:2.3:o:freebsd:freebsd:9.1:p5:*:*:*:*:*:*
freebsd freebsd 9.2 cpe:2.3:o:freebsd:freebsd:9.2:prerelease:*:*:*:*:*:*
freebsd freebsd 9.2 cpe:2.3:o:freebsd:freebsd:9.2:rc1:*:*:*:*:*:*
freebsd freebsd 9.2 cpe:2.3:o:freebsd:freebsd:9.2:rc2:*:*:*:*:*:*
mandriva business_server 1.0 cpe:2.3:o:mandriva:business_server:1.0:*:*:*:*:*:*:*
mandriva enterprise_server 5.0 cpe:2.3:o:mandriva:enterprise_server:5.0:*:*:*:*:*:*:*
redhat enterprise_linux 5 cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
redhat enterprise_linux 6.0 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:*:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:a1:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:b1:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:p1:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:p2:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:p4:*:*:*:*:*:*
isc bind 9.8.0 cpe:2.3:a:isc:bind:9.8.0:rc1:*:*:*:*:*:*

References for CVE-2013-4854

URL Tags
http://archives.neohapsis.com/archives/bugtraq/2013-08/0030.html
http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
http://linux.oracle.com/errata/ELSA-2014-1244
http://lists.fedoraproject.org/pipermail/package-announce/2013-August/113108.html Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2013-August/113251.html Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00004.html Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2013-08/msg00018.html Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-1114.html Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2013-1115.html Vendor Advisory
http://secunia.com/advisories/54134 Vendor Advisory
http://secunia.com/advisories/54185 Vendor Advisory
http://secunia.com/advisories/54207 Vendor Advisory
http://secunia.com/advisories/54211 Vendor Advisory
http://secunia.com/advisories/54323 Vendor Advisory
http://secunia.com/advisories/54432 Vendor Advisory
http://www.debian.org/security/2013/dsa-2728
http://www.freebsd.org/security/advisories/FreeBSD-SA-13:07.bind.asc Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:202 Vendor Advisory
http://www.securityfocus.com/bid/61479
http://www.securitytracker.com/id/1028838
http://www.ubuntu.com/usn/USN-1910-1
http://www.zerodayinitiative.com/advisories/ZDI-13-210/
https://exchange.xforce.ibmcloud.com/vulnerabilities/86004
https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03922396 Vendor Advisory
https://kb.isc.org/article/AA-01015 Vendor Advisory
https://kb.isc.org/article/AA-01016 Vendor Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10052
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19561
https://support.apple.com/kb/HT6536
cvelogic Threat Intelligence