CVE-2015-8605

CVE-2015-8605 is a medium-severity vulnerability in Sophos Unified Threat Management Up2date with a CVSS 3.x base score of 6.5. Its EPSS exploit-prediction score of 76% places it in the 99th 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: 5.7
• EPSS exploit prediction: 76% (99th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Sophos Unified Threat Management Up2date
• Published: 2016-01-14
• Last modified: 2026-06-17

Description

ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial of service (application crash) via an invalid length field in a UDP IPv4 packet.

Frequently asked questions

What is CVE-2015-8605?

ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial of service (application crash) via an invalid length field in a UDP IPv4 packet.

How severe is CVE-2015-8605?

CVE-2015-8605 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2015-8605 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8605?

CVE-2015-8605 primarily affects Sophos Unified Threat Management Up2date. In total, 92 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-8605?

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

When was CVE-2015-8605 published?

CVE-2015-8605 was published on 2016-01-14 and last updated on 2026-06-17.

References

• http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175594.html
• http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176031.html
• http://lists.opensuse.org/opensuse-updates/2016-02/msg00162.html
• http://lists.opensuse.org/opensuse-updates/2016-02/msg00168.html
• http://www.debian.org/security/2016/dsa-3442
• http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
• http://www.securityfocus.com/bid/80703
• http://www.securitytracker.com/id/1034657
• http://www.ubuntu.com/usn/USN-2868-1
• https://blogs.sophos.com/2016/02/17/utm-up2date-9-354-released/
• https://blogs.sophos.com/2016/02/29/utm-up2date-9-319-released/
• https://kb.isc.org/article/AA-01334

Affected products (92)

• cpe:2.3:a:sophos:unified_threat_management_up2date:*:*:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.2:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.2:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.3:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r10_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r11_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r11_rc2:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r12_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r8_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r8_rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r9_b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1-esv:r9_rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.0:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.1:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.2:-:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.2:b1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.1.2:rc1:*:*:*:*:*:*
• cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:*

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