CVE-2026-49760: Stack-based Buffer Overflow vulnerability in Erlang OTP (erl_interface) allows Stack-based Buffer Overflow. This vulnerability is associated with program file…

PriorityP426medium5.5CVSS 3.1

AVLACLPRLUINSUCNINAH

EPSS

0.14%

3.4th percentile

Stack-based Buffer Overflow vulnerability in Erlang OTP (erl_interface) allows Stack-based Buffer Overflow. This vulnerability is associated with program file lib/erl_interface/src/misc/ei_printterm.c and program routine ei_s_print_term. The C function ei_s_print_term uses an internal 2000-character stack buffer to format terms. When called with an encoded Erlang term containing a very large integer (encoded representation exceeding 2000 characters), the buffer overflows. The overflow bytes are restricted to the ASCII values of 0-9 and A-F, which limits exploitation to Denial of Service. The companion function ei_print_term, which prints directly to a FILE instead of a memory buffer, does not contain this bug. This issue affects OTP from OTP 17.0 before 27.3.4.13, 28.5.0.2 and 29.0.2, corresponding to erl_interface from 3.7.16 before 5.5.2.1, 5.7.0.1 and 5.8.1.

Affected

9 ranges

Vendor	Product	Version range	Fixed in
erlang	erl_interface	>= 3.7.16 < 5.5.2.1	5.5.2.1
erlang	erl_interface	>= 5.7 < 5.7.0.1	5.7.0.1
erlang	erl_interface	>= 5.8 < 5.8.1	5.8.1
erlang	erlang_otp	>= 17.0 < 27.3.4.13	27.3.4.13
erlang	erlang_otp	>= 28.0 < 28.5.0.2	28.5.0.2
erlang	erlang_otp	>= 29.0 < 29.0.2	29.0.2
erlang	otp	>= 17.0 < *	*
erlang	otp	>= 3.7.16 < *	*
erlang	otp	>= 84adefa331c4159d432d22840663c38f155cd4c1 < 0bef277b2d39dc8babb9ceb4f5d0a456f3007111	0bef277b2d39dc8babb9ceb4f5d0a456f3007111

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvdv4.06.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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