Is CVE-2006-4573 in the CISA KEV catalog?

No. CVE-2006-4573 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-4573?

CVE-2006-4573 has a CVSS v2 base score of 2.6 (LOW).

What is the EPSS score for CVE-2006-4573?

CVE-2006-4573 has an EPSS score of 2.11% (80th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2006-4573?

Upgrade screen on debian 11 to 4.0.3-0.1 or later.

CVE & CISA-KEV Catalog

CVE-2006-4573

LOWEPSS 80th pctl

2.6

CVSS v2

NVD

Description

Multiple unspecified vulnerabilities in the "utf8 combining characters handling" (utf8_handle_comb function in encoding.c) in screen before 4.0.3 allows user-assisted attackers to cause a denial of service (crash or hang) via certain UTF8 sequences.

How to fix

Remediation Available

screenDebian

Fixed in:4.0.3-0.1CVE-2006-4573

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

2.11%probability of exploitation in 30 days

80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

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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 2026-04-23.