CVE-2015-7848

What it is

An integer overflow can occur in NTP-dev.4.3.70 leading to an out-of-bounds memory copy operation when processing a specially crafted private mode packet. The crafted packet needs to have the correct message authentication code and a valid timestamp. When processed by the NTP daemon, it leads to an immediate crash.

At a glance

Exploitability

Can be exploited over the network without logging in. High risk of service disruption.

Exploit odds

6.1% chance of exploitation in the next 30 days (EPSS).

Fix

No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

1. 2017-01-06 21:59 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:33 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 6.1% in the next 30 days (EPSS).
• Severity: 7.5 HIGH (CVSS).
• Fix: none linked yet, which raises it.

Details

Published

2017-01-06 21:59 UTC

Last modified

2026-06-17 00:33 UTC

Exploit probability

6.1% · EPSS, next 30 days

Weakness

CWE-190 · Integer overflow

Record status

Analyzed

Affected

• Netapp Clustered Data Ontap
• Netapp Data Ontap Operating In 7-mode
• Netapp Oncommand Balance
• Netapp Oncommand Performance Manager
• Netapp Oncommand Unified Manager
• Ntp < 4.2.8
• Ntp < 4.3.77
• Ntp 4.2.8

Attack profile CVSS 3.1 · 7.5

Attack vector

Network

Complexity

Low

Privileges needed

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Is it in your code?

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