Is CVE-2004-0473 in the CISA KEV catalog?

No. CVE-2004-0473 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0473?

CVE-2004-0473 has a CVSS v2 base score of 2.6 (LOW).

What is the EPSS score for CVE-2004-0473?

CVE-2004-0473 has an EPSS score of 2.45% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-0473?

Upgrade Opera GX Stable to 7.50 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2004-0473

LOWEPSS 82th pctl

2.6

CVSS v2

NVD

Description

Argument injection vulnerability in Opera before 7.50 does not properly filter "-" characters that begin a hostname in a telnet URI, which allows remote attackers to insert options to the resulting command line and overwrite arbitrary files via (1) the "-f" option on Windows XP or (2) the "-n" option on Linux.

CWE-88

How to fix

Remediation Available

Opera GX StableWindows application

Affected:7.50Fixed in:7.50Opera Software

Opera StableWindows application

Affected:7.50Fixed in:7.50Opera Software

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.45%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Third-Party Advisory4

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.