CVE-2015-8704

CVE-2015-8704 is a medium-severity vulnerability in Isc Bind with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• CVSS v2: 6.8
• EPSS exploit prediction: 20% (97th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Isc Bind
• Published: 2016-01-20
• Last modified: 2026-06-17

Description

apl_42.c in ISC BIND 9.x before 9.9.8-P3, 9.9.x, and 9.10.x before 9.10.3-P3 allows remote authenticated users to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed Address Prefix List (APL) record.

Frequently asked questions

What is CVE-2015-8704?

apl_42.c in ISC BIND 9.x before 9.9.8-P3, 9.9.x, and 9.10.x before 9.10.3-P3 allows remote authenticated users to cause a denial of service (INSIST assertion failure and daemon exit) via a malformed Address Prefix List (APL) record.

How severe is CVE-2015-8704?

CVE-2015-8704 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2015-8704 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8704?

CVE-2015-8704 primarily affects Isc Bind. In total, 59 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-8704?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-8704 published?

CVE-2015-8704 was published on 2016-01-20 and last updated on 2026-06-17.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176564.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/178045.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175973.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175977.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00019.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00020.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00022.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00024.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00025.html
• http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00033.html
• http://marc.info/?l=bugtraq&m=145680832702035&w=2
• http://rhn.redhat.com/errata/RHSA-2016-0073.html
• http://rhn.redhat.com/errata/RHSA-2016-0074.html
• http://www.debian.org/security/2016/dsa-3449
• http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
• http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/81329
• http://www.securitytracker.com/id/1034739
• http://www.ubuntu.com/usn/USN-2874-1
• https://kb.isc.org/article/AA-01335
• https://kb.isc.org/article/AA-01380
• https://kb.isc.org/article/AA-01438
• https://security.gentoo.org/glsa/201610-07
• https://www.freebsd.org/security/advisories/FreeBSD-SA-16:08.bind.asc

Affected products (59)

• cpe:2.3:a:isc:bind:9.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.2:p3:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.4:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.5:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.6:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.2.7:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.3.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.3.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.3.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.4.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.1:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.1:rc2:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.5.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6:*:*:*:*:*:*:*
• cpe:2.3:a:isc:bind:9.6:r5_p1:*:*:*:*:*:*

More vulnerabilities in Isc Bind

• CVE-2008-0122 — Critical (CVSS 10.0): Off-by-one error in the inet_network function in libbind in ISC BIND 9.4.2 and earlier, as used in libc in FreeBSD 6.2…
• CVE-2001-0011 — Critical (CVSS 10.0): Buffer overflow in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
• CVE-2001-0013 — Critical (CVSS 10.0): Format string vulnerability in nslookupComplain function in BIND 4 allows remote attackers to gain root privileges.
• CVE-2001-0010 — Critical (CVSS 10.0): Buffer overflow in transaction signature (TSIG) handling code in BIND 8 allows remote attackers to gain root privileges.
• CVE-2000-1029 — Critical (CVSS 10.0): Buffer overflow in host command allows a remote attacker to execute arbitrary commands via a long response to an AXFR…
• CVE-1999-0837 — Critical (CVSS 10.0): Denial of service in BIND by improperly closing TCP sessions via so_linger.

All CVEs affecting Isc Bind →

Other CWE-20 (Improper Input Validation) vulnerabilities

• CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
• CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
• CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
• CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
• CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
• CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →