CVE-2021-1353: medium-severity vulnerability in Cisco ASR 5000 Series Software
Cisco StarOS IPv4 Denial of Service Vulnerability
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.8epss 1.3%
A vulnerability in the IPv4 protocol handling of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory leak that occurs during packet processing. An attacker could exploit this vulnerability by sending a series of crafted IPv4 packets through an affected device. A successful exploit could allow the attacker to exhaust the available memory and cause an unexpected restart of the npusim process, leading to a DoS condition on the affected device.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Affected products
Cisco · Cisco ASR 5000 Series SoftwareRelated CVEs — Cisco ASR 5000 Series Software
In the same product, most dangerous first.
CVE-2019-1869HIGHCisco StarOS Denial of Service VulnerabilityEPSS 2.6%CVE-2020-3500MEDIUMCisco StarOS IPv6 Denial of Service VulnerabilityEPSS 1.6%CVE-2023-20046HIGHCVE-2023-20046EPSS 1.6%CVE-2021-1378MEDIUMCisco StarOS Denial of Service VulnerabilityEPSS 1.5%CVE-2019-16026MEDIUMCisco Mobility Management Entity Denial of Service VulnerabilityEPSS 1.4%CVE-2021-1145MEDIUMCisco StarOS for Cisco ASR 5000 Series Routers Arbitrary File Read VulnerabilityEPSS 1.3%