CVE-2017-12859: NetApp Data ONTAP before 8.2.5, when operating in 7-Mode in NFS environments, allows remote attackers to cause

Q: How do I fix CVE-2017-12859?

data ontap: upgrade to newer than 8.2.4. Exact commands for each OS are on this page.

Q: Is CVE-2017-12859 being exploited?

CVE-2017-12859 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2017-12859 affect?

CVE-2017-12859 affects data ontap. Severity is medium (CVSS 5.9). NetApp Data ONTAP before 8.2.5, when operating in 7-Mode in NFS environments, allows remote attackers to cause a denial of service via unspecified vectors.

Q: How urgent is CVE-2017-12859?

Priority 45/100. Remotely exploitable, no login, no user action

This month

MEDIUM 5.9REMOTEUPGRADE

CVE-2017-12859 is a medium-severity flaw (CVSS 5.9) affecting data ontap. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NetApp Data ONTAP before 8.2.5, when operating in 7-Mode in NFS environments, allows remote attackers to cause a denial of service via unspecified vectors.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-20
Published	2017-08-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: netapp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-08-18 16:29 UTCPublished CVE record published
2026-06-17 01:04 UTCUpdated Record last modified

netapp data ontap UPGRADE

Affected: <= 8.2.4

Fixed in: newer than 8.2.4

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-12859?

data ontap: upgrade to newer than 8.2.4. Exact commands for each OS are on this page.

Is CVE-2017-12859 being exploited?

CVE-2017-12859 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-12859 affect?

CVE-2017-12859 affects data ontap. Severity is medium (CVSS 5.9). NetApp Data ONTAP before 8.2.5, when operating in 7-Mode in NFS environments, allows remote attackers to cause a denial of service via unspecified vectors.

How urgent is CVE-2017-12859?

Priority 45/100. Remotely exploitable, no login, no user action

Related CVEs

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CVE-2020-13817 HIGH 7.4 UPGRADE MITIGATE ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (dae
CVE-2020-11868 HIGH 7.5 UPGRADE MITIGATE ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated sync
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References

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