CVE-2018-15503 describes a deserialization vulnerability in Swoole version 4.0.4, specifically within its unpack implementation, due to insufficient size checks. This flaw allows an unauthenticated attacker to craft a malicious serialized object, leading to a denial of service (SEGV) with high impact on availability. The vulnerability has a CVSS score of 7.5 (High) and is remotely exploitable with low attack complexity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received minimal community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.0.4CPE matchmatch criteria | cpe:2.3:a:swoole:swoole:4.0.4:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.