CVE-2013-2802: The universal protocol implementation in Sixnet UDR before 2.0 and RTU firmware before 4.8 allows remote attac

Q: How do I fix CVE-2013-2802?

udr: upgrade to newer than 1.9; rtu firmware: upgrade to newer than 4.7. Exact commands for each OS are on this page.

Q: Is CVE-2013-2802 being exploited?

CVE-2013-2802 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2013-2802 affect?

CVE-2013-2802 affects udr, rtu firmware. Severity is high (CVSS 10.0). The universal protocol implementation in Sixnet UDR before 2.0 and RTU firmware before 4.8 allows remote attackers to execute arbitrary code; read, modify, or create files; or obtain file metadata via function opcodes.

Q: How urgent is CVE-2013-2802?

Priority 58/100. Critical severity; EPSS top 10%: very likely to be exploited

This month

HIGH 10.0UPGRADEUPGRADE

CVE-2013-2802 is a high-severity flaw (CVSS 10.0) affecting udr, rtu firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The universal protocol implementation in Sixnet UDR before 2.0 and RTU firmware before 4.8 allows remote attackers to execute arbitrary code; read, modify, or create files; or obtain file metadata via function opcodes.

Why this priority

Critical severity
EPSS top 10%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Weakness	CWE-94
Published	2013-08-21
Last modified	2026-06-16

Publisher (CNA): ICS-CERT · Vendor: sixnet

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

Am I affected?

Timeline

2013-08-21 21:55 UTCPublished CVE record published
2026-06-16 23:53 UTCUpdated Record last modified

sixnet udr UPGRADE

Affected: <= 1.9

Fixed in: newer than 1.9

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.9 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade udr

Note

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

sixnet rtu firmware UPGRADE

Affected: <= 4.7

Fixed in: newer than 4.7

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2013-2802?

udr: upgrade to newer than 1.9; rtu firmware: upgrade to newer than 4.7. Exact commands for each OS are on this page.

Is CVE-2013-2802 being exploited?

CVE-2013-2802 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-2013-2802 affect?

CVE-2013-2802 affects udr, rtu firmware. Severity is high (CVSS 10.0). The universal protocol implementation in Sixnet UDR before 2.0 and RTU firmware before 4.8 allows remote attackers to execute arbitrary code; read, modify, or create files; or obtain file metadata via function opcodes.

How urgent is CVE-2013-2802?

Priority 58/100. Critical severity; EPSS top 10%: very likely to be exploited

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References

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