How severe is CVE-2009-1300?

CVE-2009-1300 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2009-1300 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1300?

CVE-2009-1300 affects Debian Advanced Package Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2009-1300?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2009-1300 published?

CVE-2009-1300 was published on 2009-04-16 and last updated on 2026-06-16.

CVE-2009-1300

CVE-2009-1300 is a critical-severity vulnerability in Debian Advanced Package Tool with a CVSS 2.0 base score of 10.0. 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-20.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Debian Advanced Package Tool
Published: 2009-04-16
Last modified: 2026-06-16

Description

apt 0.7.20 does not check when the date command returns an "invalid date" error, which can prevent apt from loading security updates in time zones for which DST occurs at midnight.

Frequently asked questions

What is CVE-2009-1300?: apt 0.7.20 does not check when the date command returns an "invalid date" error, which can prevent apt from loading security updates in time zones for which DST occurs at midnight.
How severe is CVE-2009-1300?: CVE-2009-1300 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2009-1300 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1300?: CVE-2009-1300 affects Debian Advanced Package Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2009-1300?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2009-1300 published?: CVE-2009-1300 was published on 2009-04-16 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:debian:advanced_package_tool:0.7.20:*:*:*:*:*:*:*

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