CVE-2018-7886: An issue was discovered in CloudMe 1.11.0

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HIGH 7.8DOWNGRADE

CVE-2018-7886 is a high-severity flaw (CVSS 7.8) affecting sync. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in CloudMe 1.11.0. An unauthenticated local attacker that can connect to the "CloudMe Sync" client application listening on 127.0.0.1 port 8888 can send a malicious payload causing a buffer overflow condition. This will result in code execution, as demonstrated by a TCP reverse shell, or a crash. NOTE: this vulnerability exists because of an incomplete fix for CVE-2018-6892.

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-119
Published	2018-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cloudme

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

Am I affected?

Timeline

2018-03-15 02:29 UTCPublished CVE record published
2026-06-17 02:03 UTCUpdated Record last modified

cloudme sync DOWNGRADE

Affected: 1.11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.11.0

1. Check installed version

apt-cache policy sync || rpm -q sync || sync --version

2. No fixed release: DOWNGRADE to a release before 1.11.0 (Debian / Ubuntu)

apt-cache madison sync sudo apt install sync=<VERSION_BEFORE_1.11.0> sudo apt-mark hold sync

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sync sudo dnf downgrade sync-<VERSION_BEFORE_1.11.0> sudo dnf versionlock add sync

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: CloudMe Sync 1.11.0 - Local Buffer Overflow

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-2018-7886?

sync: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-7886 being exploited?

CVE-2018-7886 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-2018-7886 affect?

CVE-2018-7886 affects sync. Severity is high (CVSS 7.8). An issue was discovered in CloudMe 1.11.0. An unauthenticated local attacker that can connect to the "CloudMe Sync" client application listening on 127.0.0.1 port 8888 can send a malicious payload causing a buffer overflow condition. This w

How urgent is CVE-2018-7886?

Priority 52/100. High severity; Public exploit reference

Related CVEs

CVE-2022-0915 MEDIUM 6.0 UPGRADE There is a Time-of-check Time-of-use (TOCTOU) Race Condition Vulnerability in Logitech Sync for Windows prior
CVE-2018-6892 CRITICAL 9.8 UPGRADE An issue was discovered in CloudMe before 1.11.0

References

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