CVE-2018-0617: Directory traversal vulnerability in ChamaNet MemoCGI v2.1800 to v2.2200 allows remote attackers to read arbit

This month

HIGH 7.5REMOTEUPGRADE

CVE-2018-0617 is a high-severity flaw (CVSS 7.5) affecting memocgi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in ChamaNet MemoCGI v2.1800 to v2.2200 allows remote attackers to read arbitrary files via unspecified vectors.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-22
Published	2018-07-26
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: chama

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

Am I affected?

Timeline

2018-07-26 17:29 UTCPublished CVE record published
2026-06-17 01:31 UTCUpdated Record last modified

chama memocgi UPGRADE

Affected: >= 2.1800 and <= 2.2200

Fixed in: newer than 2.2200

Safe to downgrade to: a release before 2.1800

1. Check installed version

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

2. UPGRADE to newer than 2.2200 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade memocgi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade memocgi

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.1800 (Debian / Ubuntu)

apt-cache madison memocgi sudo apt install memocgi=<VERSION_BEFORE_2.1800> sudo apt-mark hold memocgi

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list memocgi sudo dnf downgrade memocgi-<VERSION_BEFORE_2.1800> sudo dnf versionlock add memocgi

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.

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-2018-0617?

memocgi: upgrade to newer than 2.2200. Exact commands for each OS are on this page.

Is CVE-2018-0617 being exploited?

CVE-2018-0617 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-2018-0617 affect?

CVE-2018-0617 affects memocgi. Severity is high (CVSS 7.5). Directory traversal vulnerability in ChamaNet MemoCGI v2.1800 to v2.2200 allows remote attackers to read arbitrary files via unspecified vectors.

How urgent is CVE-2018-0617?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

References

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