CVE-2002-0134: Telnet proxy in Avirt Gateway Suite 4.2 does not require authentication for connecting to the proxy system its

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HIGH 7.5DOWNGRADE

CVE-2002-0134 is a high-severity flaw (CVSS 7.5) affecting avirt gateway suite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Telnet proxy in Avirt Gateway Suite 4.2 does not require authentication for connecting to the proxy system itself, which allows remote attackers to list file contents of the proxy and execute arbitrary commands via a "dos" command.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Published	2002-03-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: avirt

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

Am I affected?

Timeline

2002-03-25 05:00 UTCPublished CVE record published
2026-06-16 21:56 UTCUpdated Record last modified

avirt avirt gateway suite DOWNGRADE

Affected: 4.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2

1. Check installed version

apt-cache policy avirt-gateway-suite || rpm -q avirt-gateway-suite || avirt-gateway-suite --version

2. No fixed release: DOWNGRADE to a release before 4.2 (Debian / Ubuntu)

apt-cache madison avirt-gateway-suite sudo apt install avirt-gateway-suite=<VERSION_BEFORE_4.2> sudo apt-mark hold avirt-gateway-suite

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

dnf --showduplicates list avirt-gateway-suite sudo dnf downgrade avirt-gateway-suite-<VERSION_BEFORE_4.2> sudo dnf versionlock add avirt-gateway-suite

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-2002-0134?

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

Is CVE-2002-0134 being exploited?

CVE-2002-0134 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-2002-0134 affect?

CVE-2002-0134 affects avirt gateway suite. Severity is high (CVSS 7.5). Telnet proxy in Avirt Gateway Suite 4.2 does not require authentication for connecting to the proxy system itself, which allows remote attackers to list file contents of the proxy and execute arbitrary commands via a "dos" command.

How urgent is CVE-2002-0134?

Priority 49/100. High severity

Related CVEs

CVE-2002-0133 HIGH 7.5 DOWNGRADE DOWNGRADE Buffer overflows in Avirt Gateway Suite 4.2 allow remote attackers to cause a denial of service and possibly e

References

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