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CVE-2006-4573

Multiple unspecified vulnerabilities in the "utf8 combining characters handling" ...

2.6 LowFix available

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.

Exploit likelihood

2.29%Down 0.4 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 2.6

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.

Record
CVE-2006-4573
CVSS 2.0
2.6 LowAV:N/AC:H/Au:N/C:N/I:N/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2006-4573
Updated
2026-11-02
EUVDEUVD-2006-4561 No score

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.

Record
EUVD-2006-4561
Updated
2026-11-03
GitHub AdvisoriesGHSA-5v6p-jx73-rq6x No score

Multiple unspecified vulnerabilities in the "utf8 combining characters handling" ...

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.

Record
GHSA-5v6p-jx73-rq6x
Updated
2026-11-02
OSV No score

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.

Record
CVE-2006-4573
Updated
2026-11-02
OSVDEBIAN-CVE-2006-4573 No score

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.

Record
DEBIAN-CVE-2006-4573
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
screen
Debian:12
before 4.0.3-0.1
4.0.3-0.1
screen
Debian:13
before 4.0.3-0.1
4.0.3-0.1
screen
Debian:14
before 4.0.3-0.1
4.0.3-0.1
screen
Debian:3.1
before 4.0.2-4.1sarge1, plus listed versions
4.0.2-4.1
4.0.2-4.1sarge1

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2006-4573 is a low vulnerability (CVSS 2.6) in Gnu Screen, published October 24, 2006. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.29%, the 83rd percentile. Fixed in screen 4.0.3-0.1.

References

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