CVE-2025-65570 describes a critical type confusion vulnerability in jsish 2.0, specifically impacting the OP_NEXT opcode during for-in loop execution with array element access in an "instanceof" expression. This flaw can lead to incorrect control flow, potentially causing a crash or enabling arbitrary code execution due to reading a function pointer from an invalid memory location. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk with network attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Currently, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), nor any evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
2.0CPE matchmatch criteria | cpe:2.3:a:jsish:jsish:2.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.