CVE-2004-1145: Multiple vulnerabilities in Konqueror in KDE 3.3.1 and earlier (1) allow access to restricted Java classes via

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MEDIUM 5.0WATCHLISTDOWNGRADEDOWNGRADEMITIGATE

CVE-2004-1145 is a medium-severity flaw (CVSS 5.0) affecting ethereal, propack, linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple vulnerabilities in Konqueror in KDE 3.3.1 and earlier (1) allow access to restricted Java classes via JavaScript and (2) do not properly restrict access to certain Java classes from the Java applet, which allows remote attackers to bypass sandbox restrictions and read or write arbitrary files.

Why this priority

EPSS top 9%: very likely to be exploited
On your watchlist

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	4.1% (top 9%)
CISA exploited list	No
Published	2004-12-15
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: altlinux · conectiva · debian · ethereal group · redhat · sgi

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

Am I affected?

Timeline

2004-12-15 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

ethereal group ethereal DOWNGRADE

Affected: 0.9 · 0.9.1 · 0.9.2 · 0.9.3 · 0.9.4 · 0.9.5 · 0.9.6 · 0.9.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9 (Debian / Ubuntu)

apt-cache madison ethereal sudo apt install ethereal=<VERSION_BEFORE_0.9> sudo apt-mark hold ethereal

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

dnf --showduplicates list ethereal sudo dnf downgrade ethereal-<VERSION_BEFORE_0.9> sudo dnf versionlock add ethereal

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.

sgi propack DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison propack sudo apt install propack=<VERSION_BEFORE_3.0> sudo apt-mark hold propack

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

dnf --showduplicates list propack sudo dnf downgrade propack-<VERSION_BEFORE_3.0> sudo dnf versionlock add propack

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.

conectiva linux MITIGATE

Affected: 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.0

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.

altlinux alt linux MITIGATE

Affected: 2.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3

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.

debian debian linux MITIGATE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

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.

redhat enterprise linux MITIGATE

Affected: 2.1 · 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

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-2004-1145?

ethereal: downgrade or apply the listed mitigation; propack: downgrade or apply the listed mitigation; linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-1145 being exploited?

CVE-2004-1145 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-2004-1145 affect?

CVE-2004-1145 affects ethereal, propack, linux. Severity is medium (CVSS 5.0). Multiple vulnerabilities in Konqueror in KDE 3.3.1 and earlier (1) allow access to restricted Java classes via JavaScript and (2) do not properly restrict access to certain Java classes from the Java applet, which allows remote attackers to

How urgent is CVE-2004-1145?

Priority 45/100. EPSS top 9%: very likely to be exploited; On your watchlist

Software pages

Java vulnerabilities · Debian vulnerabilities

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References

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