CVE-2015-5699: The Switch Configuration Tools Backend (clcmd_server) in Cumulus Linux 2.5.3 and earlier allows local users to

Q: How do I fix CVE-2015-5699?

cumulus linux: upgrade to newer than 2.5.3. Exact commands for each OS are on this page.

Q: Is CVE-2015-5699 being exploited?

CVE-2015-5699 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-2015-5699 affect?

CVE-2015-5699 affects cumulus linux. Severity is high (CVSS 7.8). The Switch Configuration Tools Backend (clcmd_server) in Cumulus Linux 2.5.3 and earlier allows local users to execute arbitrary commands via shell metacharacters in a cl-rctl command label.

Q: How urgent is CVE-2015-5699?

Priority 41/100. High severity; On your watchlist

This month

HIGH 7.8WATCHLISTUPGRADE

CVE-2015-5699 is a high-severity flaw (CVSS 7.8) affecting cumulus linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Switch Configuration Tools Backend (clcmd_server) in Cumulus Linux 2.5.3 and earlier allows local users to execute arbitrary commands via shell metacharacters in a cl-rctl command label.

Why this priority

High severity
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-264
Published	2017-10-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cumulusnetworks

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

Am I affected?

Timeline

2017-10-22 18:29 UTCPublished CVE record published
2026-06-17 00:29 UTCUpdated Record last modified

cumulusnetworks cumulus linux UPGRADE

Affected: <= 2.5.3

Fixed in: newer than 2.5.3

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-2015-5699?

cumulus linux: upgrade to newer than 2.5.3. Exact commands for each OS are on this page.

Is CVE-2015-5699 being exploited?

CVE-2015-5699 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-2015-5699 affect?

CVE-2015-5699 affects cumulus linux. Severity is high (CVSS 7.8). The Switch Configuration Tools Backend (clcmd_server) in Cumulus Linux 2.5.3 and earlier allows local users to execute arbitrary commands via shell metacharacters in a cl-rctl command label.

How urgent is CVE-2015-5699?

Priority 41/100. High severity; On your watchlist

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References

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