Is CVE-2009-0153 in the CISA KEV catalog?

No. CVE-2009-0153 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2009-0153?

CVE-2009-0153 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2009-0153?

CVE-2009-0153 has an EPSS score of 3.68% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2009-0153?

Upgrade icu on debian 11 to 4.0.1-1 or later.

CVE & CISA-KEV Catalog

CVE-2009-0153

MEDIUMEPSS 88th pctl

4.3

CVSS v2

NVD

Description

International Components for Unicode (ICU) 4.0, 3.6, and other 3.x versions, as used in Apple Mac OS X 10.5 before 10.5.7, iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Fedora 9 and 10, and possibly other operating systems, does not properly handle invalid byte sequences during Unicode conversion, which might allow remote attackers to conduct cross-site scripting (XSS) attacks.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

icuDebian

Fixed in:4.0.1-1CVE-2009-0153

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

3.68%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	Fix

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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.