Stack-based buffer overflow in otp - CVE-2026-49760
Published: July 2, 2026
Vulnerability identifier: #VU136816
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-49760
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: erlang
Affected software:
otp
otp
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to stack-based buffer overflow in ei_s_print_term when processing an encoded Erlang term containing a very large integer. A remote attacker can supply specially crafted term data to cause a denial of service.
The issue is limited to the memory-printing function and does not affect the related ei_print_term function that writes to a FILE.
How to mitigate CVE-2026-49760
Install security update from vendor's website.