CVE-2015-4236 describes a denial-of-service vulnerability affecting Cisco AsyncOS on Email Security Appliance (ESA) devices running specific software versions (8.5.6-073, 8.5.6-074, and 9.0.0-461) when clustering is enabled. A remote attacker can exploit this by sending a packet flood, leading to outages in clustering and SSH services. The vulnerability has a CVSS score of 4.3, indicating a medium attack complexity and partial availability impact, but no confidentiality or integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
8.5.6-074CPE matchmatch criteria | cpe:2.3:h:cisco:email_security_appliance:8.5.6-074:*:*:*:*:*:*:* | ||
8.5.6-073CPE matchmatch criteria | cpe:2.3:o:cisco:email_security_appliance_firmware:8.5.6-073:*:*:*:*:*:*:* | ||
9.0.0-461CPE matchmatch criteria | cpe:2.3:o:cisco:email_security_appliance_firmware:9.0.0-461:*:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:M/Au:N/C:N/I:N/A:P
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.