CVE-2018-9115: Systematic SitaWare 6.4 SP2 does not validate input from other sources sufficiently

This week

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2018-9115 is a medium-severity flaw (CVSS 5.3) affecting sitaware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Systematic SitaWare 6.4 SP2 does not validate input from other sources sufficiently. e.g., information utilizing the NVG interface. An attacker can freeze the Situational Layer, which means that the Situational Picture is no longer updated. Unfortunately, the user cannot notice until he tries to work with that layer.

Why this priority

EPSS top 7%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	5.8% (top 7%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-04-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: systematicinc

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

Am I affected?

Timeline

2018-04-04 19:29 UTCPublished CVE record published
2026-06-17 02:06 UTCUpdated Record last modified

systematicinc sitaware DOWNGRADE

Affected: 6.4 sp2

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.4 (Debian / Ubuntu)

apt-cache madison sitaware sudo apt install sitaware=<VERSION_BEFORE_6.4> sudo apt-mark hold sitaware

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

dnf --showduplicates list sitaware sudo dnf downgrade sitaware-<VERSION_BEFORE_6.4> sudo dnf versionlock add sitaware

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: Systematic SitAware - NVG Denial of Service

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-2018-9115?

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

Is CVE-2018-9115 being exploited?

CVE-2018-9115 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-2018-9115 affect?

CVE-2018-9115 affects sitaware. Severity is medium (CVSS 5.3). Systematic SitaWare 6.4 SP2 does not validate input from other sources sufficiently. e.g., information utilizing the NVG interface. An attacker can freeze the Situational Layer, which means that the Situational Picture is no longer updated.

How urgent is CVE-2018-9115?

Priority 52/100. EPSS top 7%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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