CVE-2006-2709: Secure Elements Class 5 AVR (aka C5 EVM) before 2.8.1 do not validate the source address of a message, which a

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MEDIUM 5.0DOWNGRADE

CVE-2006-2709 is a medium-severity flaw (CVSS 5.0) affecting class 5 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 (aka C5 EVM) before 2.8.1 do not validate the source address of a message, which allows remote attackers to (1) execute arbitrary code on a client or (2) forge messages to the server.

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	3.7% (top 10%)
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 class 5 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 class-5-enterprise-vulnerability-management || rpm -q class-5-enterprise-vulnerability-management || class-5-enterprise-vulnerability-management --version

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

apt-cache madison class-5-enterprise-vulnerability-management sudo apt install class-5-enterprise-vulnerability-management=<VERSION_BEFORE_2.8.0> sudo apt-mark hold class-5-enterprise-vulnerability-management

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

dnf --showduplicates list class-5-enterprise-vulnerability-management sudo dnf downgrade class-5-enterprise-vulnerability-management-<VERSION_BEFORE_2.8.0> sudo dnf versionlock add class-5-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-2006-2709?

class 5 enterprise vulnerability management: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2709 being exploited?

CVE-2006-2709 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-2006-2709 affect?

CVE-2006-2709 affects class 5 enterprise vulnerability management. Severity is medium (CVSS 5.0). Secure Elements Class 5 AVR (aka C5 EVM) before 2.8.1 do not validate the source address of a message, which allows remote attackers to (1) execute arbitrary code on a client or (2) forge messages to the server.

How urgent is CVE-2006-2709?

Priority 40/100. No elevated risk signals yet.

Related CVEs

CVE-2006-2712 MEDIUM 5.0 DOWNGRADE Secure Elements Class 5 AVR (aka C5 EVM) client and server before 2.8.1 do not verify the integrity of a messa
CVE-2006-2711 MEDIUM 5.0 DOWNGRADE Secure Elements Class 5 AVR (aka C5 EVM) 2.8.1 and earlier, and possibly later 2.8.x releases, uses the same i
CVE-2006-2710 MEDIUM 5.0 DOWNGRADE Secure Elements Class 5 AVR (aka C5 EVM) before 2.8.1 uses the same invariant RSA key for all installations, w
CVE-2006-2708 MEDIUM 5.0 DOWNGRADE Secure Elements Class 5 AVR client (aka C5 EVM) before 2.8.1 allows remote attackers to read portions of proce
CVE-2006-2707 MEDIUM 5.0 DOWNGRADE Secure Elements Class 5 AVR server (aka C5 EVM) before 2.8.1 does not validate the peer certificate when obtai

References

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