CVE-2006-2704: Secure Elements Class 5 AVR server and client (aka C5 EVM) before 2.8.1 send messages in cleartext, which allo

Routine

MEDIUM 5.0DOWNGRADE

CVE-2006-2704 is a medium-severity flaw (CVSS 5.0) affecting c5 enterprise vulnerability management. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Secure Elements Class 5 AVR server and client (aka C5 EVM) before 2.8.1 send messages in cleartext, which allows remote attackers to read sensitive vulnerability information.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.1% (top 18%)
CISA exploited list	No
Published	2006-05-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: secure elements

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-05-31 22:02 UTCPublished CVE record published
2026-06-16 22:25 UTCUpdated Record last modified

secure elements c5 enterprise vulnerability management DOWNGRADE

Affected: 2.8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.8.0

1. Check installed version

apt-cache policy c5-enterprise-vulnerability-management || rpm -q c5-enterprise-vulnerability-management || c5-enterprise-vulnerability-management --version

2. No fixed release: DOWNGRADE to a release before 2.8.0 (Debian / Ubuntu)

apt-cache madison c5-enterprise-vulnerability-management sudo apt install c5-enterprise-vulnerability-management=<VERSION_BEFORE_2.8.0> sudo apt-mark hold c5-enterprise-vulnerability-management

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

dnf --showduplicates list c5-enterprise-vulnerability-management sudo dnf downgrade c5-enterprise-vulnerability-management-<VERSION_BEFORE_2.8.0> sudo dnf versionlock add c5-enterprise-vulnerability-management

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-2006-2704?

c5 enterprise vulnerability management: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2704 being exploited?

CVE-2006-2704 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-2006-2704 affect?

CVE-2006-2704 affects c5 enterprise vulnerability management. Severity is medium (CVSS 5.0). Secure Elements Class 5 AVR server and client (aka C5 EVM) before 2.8.1 send messages in cleartext, which allows remote attackers to read sensitive vulnerability information.

How urgent is CVE-2006-2704?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2006-2717 MEDIUM 4.0 MITIGATE Unspecified vulnerability in Secure Elements Class 5 AVR client and server (aka C5 EVM) before 2.8.1 allows au
CVE-2006-2716 HIGH 7.5 MITIGATE Secure Elements Class 5 AVR server (aka C5 EVM) before 2.8.1 uses a hard-coded user ID and password, which all
CVE-2006-2715 HIGH 7.5 MITIGATE The Administration Console in Secure Elements Class 5 AVR (aka C5 EVM) before 2.8.1 does not enforce access co
CVE-2006-2714 MEDIUM 5.0 MITIGATE Secure Elements Class 5 AVR client (aka C5 EVM) before 2.8.1 does not validate the CEID of an incoming message
CVE-2006-2713 MEDIUM 5.0 MITIGATE Secure Elements Class 5 AVR client (aka C5 EVM) before 2.8.1 generates predictable CEIDs, which allows remote

References

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