CVE-2020-3496
published 2020-08-26CVE-2020-3496: A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to…
PriorityP430medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
1.74%
75.1th percentile
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
Affected
116 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_small_business_250_series_smart_switches_software | — | — |
| cisco | sf200-24_firmware | <= 2.5.5.47 | — |
| cisco | sf200-24fp_firmware | <= 2.5.5.47 | — |
| cisco | sf200-24p_firmware | <= 2.5.5.47 | — |
| cisco | sf200-48_firmware | <= 2.5.5.47 | — |
| cisco | sf200-48p_firmware | <= 2.5.5.47 | — |
| cisco | sf250-24_firmware | <= 2.5.5.47 | — |
| cisco | sf250-24p_firmware | <= 2.5.5.47 | — |
| cisco | sf250-48_firmware | <= 2.5.5.47 | — |
| cisco | sf250-48hp_firmware | <= 2.5.5.47 | — |
| cisco | sf300-08_firmware | <= 2.5.5.47 | — |
| cisco | sf300-24_firmware | <= 2.5.5.47 | — |
| cisco | sf300-24mp_firmware | <= 2.5.5.47 | — |
| cisco | sf300-24p_firmware | <= 2.5.5.47 | — |
| cisco | sf300-24pp_firmware | <= 2.5.5.47 | — |
| cisco | sf300-48_firmware | <= 2.5.5.47 | — |
| cisco | sf300-48p_firmware | <= 2.5.5.47 | — |
| cisco | sf300-48pp_firmware | <= 2.5.5.47 | — |
| cisco | sf302-08_firmware | <= 2.5.5.47 | — |
| cisco | sf302-08mp_firmware | <= 2.5.5.47 | — |
| cisco | sf302-08mpp_firmware | <= 2.5.5.47 | — |
| cisco | sf302-08p_firmware | <= 2.5.5.47 | — |
| cisco | sf302-08pp_firmware | <= 2.5.5.47 | — |
| cisco | sf350-48_firmware | <= 2.5.5.47 | — |
| cisco | sf350-48mp_firmware | <= 2.5.5.47 | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv3.05.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
vendor_cisco5.3MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-p3jf-mcx6-q3cr: A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacke
ghsa_unreviewed·2022-05-24
CVE-2020-3496 [MEDIUM] CWE-20 GHSA-p3jf-mcx6-q3cr: A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacke
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
Cisco
Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
vendor_cisco·2020-08-19·CVSS 5.3
CVE-2020-3496 [MEDIUM] CWE-20 Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition.
This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.
There are no workarounds that address this vulnerability.
This advisory is available at the following lin
Cisco
Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
vendor_cisco·CVSS 3.0
CVE-2020-3496 Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
CVE-2020-3496: Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected. There are no
CVSS: 3.0
CWE: CWE-20, CWE-20
Bug IDs: CSCvt45826
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2020-08-26
Published