PT-2025-26233 · Wasm3 · Wasm3

Jjleo · Published 2025-06-19 · Updated 2025-06-19 · CVE-2025-6272

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Low

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions wasm3 version 0.5.0

Description A vulnerability has been found in the function MarkSlotAllocated of the file source/m3 compile.c, leading to an out-of-bounds write. The manipulation can be exploited locally.

Recommendations For wasm3 version 0.5.0, consider disabling the MarkSlotAllocated function until a patch is available. Restrict access to the source/m3 compile.c file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

CVE-2025-6272

PYSEC-2025-186

Affected Products

Wasm3

References · 12

• 🔥 https://github.com/wasm3/wasm3/issues/531 · Exploit
• 🔥❌ https://github.com/user-attachments/files/19516600/wasm3_crash.txt · Exploit, Deleted
• https://osv.dev/vulnerability/PYSEC-2025-186 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-6272 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-6272 · Security Note
• https://vuldb.com/?submit.593008 · Note
• https://t.me/cvetracker/26583 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1935765204551295154 · Twitter Post
• https://vuldb.com/?id.313276 · Note
• https://t.me/cvenotify/126173 · Telegram Post
• https://twitter.com/CVEnew/status/1935764710739058960 · Twitter Post
• https://vuldb.com/?ctiid.313276 · Note