CVE-2005-4511: Format string vulnerability in TN3270 Resource Gateway 1.1.0 allows local users to cause a denial of service a

Routine

MEDIUM 4.6DOWNGRADE

CVE-2005-4511 is a medium-severity flaw (CVSS 4.6) affecting tn3270 resource gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in TN3270 Resource Gateway 1.1.0 allows local users to cause a denial of service and possibly execute arbitrary code via format string specifiers in syslog function calls.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Published	2005-12-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: curtis hawthorne

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

Am I affected?

Timeline

2005-12-23 01:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

curtis hawthorne tn3270 resource gateway DOWNGRADE

Affected: 1.0.0 · 1.0.1 · 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

apt-cache policy tn3270-resource-gateway || rpm -q tn3270-resource-gateway || tn3270-resource-gateway --version

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison tn3270-resource-gateway sudo apt install tn3270-resource-gateway=<VERSION_BEFORE_1.0.0> sudo apt-mark hold tn3270-resource-gateway

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

dnf --showduplicates list tn3270-resource-gateway sudo dnf downgrade tn3270-resource-gateway-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add tn3270-resource-gateway

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-2005-4511?

tn3270 resource gateway: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2005-4511 being exploited?

CVE-2005-4511 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-2005-4511 affect?

CVE-2005-4511 affects tn3270 resource gateway. Severity is medium (CVSS 4.6). Format string vulnerability in TN3270 Resource Gateway 1.1.0 allows local users to cause a denial of service and possibly execute arbitrary code via format string specifiers in syslog function calls.

How urgent is CVE-2005-4511?

Priority 24/100. No elevated risk signals yet.

References

← Back to latest CVEs