CVE-2017-14702: ERS Data System 1.8.1.0 allows remote attackers to execute arbitrary code, related to "com.branaghgroup.ecers.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2017-14702 is a critical-severity flaw (CVSS 9.8) affecting ers data system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ERS Data System 1.8.1.0 allows remote attackers to execute arbitrary code, related to "com.branaghgroup.ecers.update.UpdateRequest" object deserialization.

Why this priority

Critical severity
EPSS top 5%: 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	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.3% (top 5%)
CISA exploited list	No
Weakness	CWE-502
Published	2017-09-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: branaghgroup

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

Am I affected?

Timeline

2017-09-30 01:29 UTCPublished CVE record published
2026-06-17 01:06 UTCUpdated Record last modified

branaghgroup ers data system DOWNGRADE

Affected: 1.8.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8.1.0

1. Check installed version

apt-cache policy ers-data-system || rpm -q ers-data-system || ers-data-system --version

2. No fixed release: DOWNGRADE to a release before 1.8.1.0 (Debian / Ubuntu)

apt-cache madison ers-data-system sudo apt install ers-data-system=<VERSION_BEFORE_1.8.1.0> sudo apt-mark hold ers-data-system

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

dnf --showduplicates list ers-data-system sudo dnf downgrade ers-data-system-<VERSION_BEFORE_1.8.1.0> sudo dnf versionlock add ers-data-system

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: ERS Data System 1.8.1 - Java Deserialization

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-2017-14702?

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

Is CVE-2017-14702 being exploited?

CVE-2017-14702 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-2017-14702 affect?

CVE-2017-14702 affects ers data system. Severity is critical (CVSS 9.8). ERS Data System 1.8.1.0 allows remote attackers to execute arbitrary code, related to "com.branaghgroup.ecers.update.UpdateRequest" object deserialization.

How urgent is CVE-2017-14702?

Priority 68/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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