How severe is CVE-2019-15264?

CVE-2019-15264 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2019-15264 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-15264?

CVE-2019-15264 primarily affects Cisco Aironet 1540 Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-15264?

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

When was CVE-2019-15264 published?

CVE-2019-15264 was published on 2019-10-16 and last updated on 2026-06-17.

CVE-2019-15264

CVE-2019-15264 is a medium-severity vulnerability in Cisco Aironet 1540 Firmware with a CVSS 3.x base score of 6.5. 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-400.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.1
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Cisco Aironet 1540 Firmware
Published: 2019-10-16
Last modified: 2026-06-17

Description

A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol implementation of Cisco Aironet and Catalyst 9100 Access Points (APs) could allow an unauthenticated, adjacent attacker to cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to improper resource management during CAPWAP message processing. An attacker could exploit this vulnerability by sending a high volume of legitimate wireless management frames within a short time to an affected device. A successful exploit could allow the attacker to cause a device to restart unexpectedly, resulting in a DoS condition for clients associated with the AP.

Frequently asked questions

What is CVE-2019-15264?: A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol implementation of Cisco Aironet and Catalyst 9100 Access Points (APs) could allow an unauthenticated, adjacent attacker to cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to improper resource management during CAPWAP message processing. An attacker could exploit this vulnerability by sending a high volume of legitimate wireless management frames within a short time to an affected device. A successful exploit could allow the attacker to cause a device to restart unexpectedly, resulting in a DoS condition for clients associated with the AP.
How severe is CVE-2019-15264?: CVE-2019-15264 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2019-15264 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-15264?: CVE-2019-15264 primarily affects Cisco Aironet 1540 Firmware. In total, 17 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-15264?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-15264 published?: CVE-2019-15264 was published on 2019-10-16 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-airo-capwap-dos

Affected products (17)

cpe:2.3:o:cisco:aironet_1540_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1560_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(1.249\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(1.255\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(4.28\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(4.41\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(4.49\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(4.55\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(4.58\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.9\(104.24\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.10\(1.139\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_1850_firmware:8.10\(1.146\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_2800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_3800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:aironet_4800_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:cisco:catalyst_9100_firmware:-:*:*:*:*:*:*:*

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