How severe is CVE-2009-2189?

CVE-2009-2189 has a CVSS 2.0 base score of 6.1, rated medium severity.

Is CVE-2009-2189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-2189?

CVE-2009-2189 primarily affects Apple Airport Express Base Station Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-2189?

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

When was CVE-2009-2189 published?

CVE-2009-2189 was published on 2010-12-22 and last updated on 2026-06-16.

CVE-2009-2189

CVE-2009-2189 is a medium-severity vulnerability in Apple Airport Express Base Station Firmware with a CVSS 2.0 base score of 6.1. 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-399.

Key facts

Severity: Medium (CVSS 2.0 base score 6.1)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Apple Airport Express Base Station Firmware
Published: 2010-12-22
Last modified: 2026-06-16

Description

The ICMPv6 implementation on the Apple Time Capsule, AirPort Extreme Base Station, and AirPort Express Base Station with firmware before 7.5.2 does not limit the rate of (1) Router Advertisement and (2) Neighbor Discovery packets, which allows remote attackers to cause a denial of service (resource consumption and device restart) by sending many packets.

Frequently asked questions

What is CVE-2009-2189?: The ICMPv6 implementation on the Apple Time Capsule, AirPort Extreme Base Station, and AirPort Express Base Station with firmware before 7.5.2 does not limit the rate of (1) Router Advertisement and (2) Neighbor Discovery packets, which allows remote attackers to cause a denial of service (resource consumption and device restart) by sending many packets.
How severe is CVE-2009-2189?: CVE-2009-2189 has a CVSS 2.0 base score of 6.1, rated medium severity.
Is CVE-2009-2189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-2189?: CVE-2009-2189 primarily affects Apple Airport Express Base Station Firmware. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-2189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2009-2189 published?: CVE-2009-2189 was published on 2010-12-22 and last updated on 2026-06-16.

References

Affected products (12)

cpe:2.3:h:apple:airport_express_base_station_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:3.84:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:4.0.9:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:6.1:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:6.3:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:7.3.2:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express_base_station_firmware:7.4.1:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_extreme_base_station_firmware:5.5:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_extreme_base_station_firmware:5.7:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_express:*:*:*:*:*:*:*:*
cpe:2.3:h:apple:airport_extreme:*:*:*:*:*:*:*:*
cpe:2.3:h:apple:time_capsule:*:*:*:*:*:*:*:*

More vulnerabilities in Apple Airport Express Base Station Firmware

CVE-2010-1804 — High (CVSS 7.1): Unspecified vulnerability in the network bridge functionality on the Apple Time Capsule, AirPort Extreme Base Station,…
CVE-2010-0039 — Low (CVSS 2.6): The Application-Level Gateway (ALG) on the Apple Time Capsule, AirPort Extreme Base Station, and AirPort Express Base…

All CVEs affecting Apple Airport Express Base Station Firmware →

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →