Is CVE-2010-0055 being actively exploited?

CVE-2010-0055 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2010-0055?

CVE-2010-0055 has a CVSS 2.0 base score of 10.0 (HIGH).

CVE-2010-0055

HIGH · CVSS 10.0EPSS 2.0%EU EUVD

xar in Apple Mac OS X 10.5.8 does not properly validate package signatures, which allows attackers to have an unspecified impact via a modified package.

Key facts

CVSS score: 10.0 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS score: 2.0% (81th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2010-0087)
Published: March 30, 2010
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2010-0087 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

apple / mac os x
apple / mac os x server

References

http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html(Patch, Vendor Advisory)
http://support.apple.com/kb/HT4077(Patch, Vendor Advisory)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXQ3NRRTC4A3F3GW2RQNATJHYDIRSCBS/

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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