CVE-2010-0055

CRITICAL

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.

Affects 2 products across 1 vendor.

BCS7.22
CVSS 2.010.0
EPSS2.0%
Percentile79th
PatchPatched
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ SAGE Intelligence — CITED Relevance Research Team

This vulnerability was disclosed in 2010. A critical vulnerability affects Apple systems (CVE-2010-0055). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2010-GLOBAL-084427-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2010-0055?
This vulnerability was disclosed in 2010. A critical vulnerability affects Apple systems (CVE-2010-0055). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2010-0055?
CVE-2010-0055 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 2.0%.
Is CVE-2010-0055 actively exploited?
No confirmed active exploitation of CVE-2010-0055 as of 2026-05-30.
How do I remediate CVE-2010-0055?
Priority: MEDIUM. Advisory: http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html PSIRT: [email protected]
What systems are affected by CVE-2010-0055?
CVE-2010-0055 affects: Apple, Apple.
Vulnerability Details
CVE IDCVE-2010-0055
BSIDBS-2010-GLOBAL-084427-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2010-03-30
Last Modified2026-04-29
ICS Relevance0%
SourceNVD
Official Description

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.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: 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. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductFixed Version
Apple Mac Os X —
Apple Mac Os X Server —
Remediation
View Vendor Advisory →

Remediation Priority: MEDIUM

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: August 2026 | Threat Age: 5968 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
SAGE Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hashecc02a13587796f29df5abb7551e4f26bd3bf71a253a69daef2f2cddf49d702082eef1b17541526996c9b2cf2fb23b162760689985cd2b1c6f01a79027d99f20
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