How severe is CVE-2009-2836?

CVE-2009-2836 has a CVSS 2.0 base score of 6.2, rated medium severity.

Is CVE-2009-2836 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2836?

CVE-2009-2836 primarily affects Apple Mac Os X. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2836?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2009-2836 published?

CVE-2009-2836 was published on 2009-11-10 and last updated on 2026-06-16.

CVE-2009-2836

CVE-2009-2836 is a medium-severity vulnerability in Apple Mac Os X with a CVSS 2.0 base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-362.

Key facts

Severity: Medium (CVSS 2.0 base score 6.2)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-362
Affected product: Apple Mac Os X
Published: 2009-11-10
Last modified: 2026-06-16

Description

Race condition in Login Window in Apple Mac OS X 10.6.x before 10.6.2, when at least one account has a blank password, allows attackers to bypass password authentication and obtain login access to an arbitrary account via unspecified vectors.

Frequently asked questions

What is CVE-2009-2836?: Race condition in Login Window in Apple Mac OS X 10.6.x before 10.6.2, when at least one account has a blank password, allows attackers to bypass password authentication and obtain login access to an arbitrary account via unspecified vectors.
How severe is CVE-2009-2836?: CVE-2009-2836 has a CVSS 2.0 base score of 6.2, rated medium severity.
Is CVE-2009-2836 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2836?: CVE-2009-2836 primarily affects Apple Mac Os X. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2836?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2836 published?: CVE-2009-2836 was published on 2009-11-10 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:o:apple:mac_os_x:10.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:10.6.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x_server:10.6.1:*:*:*:*:*:*:*

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