CVE-2026-49760

EUVD-2026-36052
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 OTP 29.0.2, OTP 28.5.0.2 and OTP 27.3.4.13, corresponding to erl_interface from 3.7.16 before 5.8.1, 5.7.0.1 and 5.5.2.1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 3%
Affected Products (NVD)
VendorProductVersion
erlangerl_interface
3.7.16 ≤
𝑥
< 5.5.2.1
erlangerl_interface
5.7 ≤
𝑥
< 5.7.0.1
erlangerl_interface
5.8 ≤
𝑥
< 5.8.1
erlangerlang/otp
17.0 ≤
𝑥
< 27.3.4.13
erlangerlang/otp
28.0 ≤
𝑥
< 28.5.0.2
erlangerlang/otp
29.0 ≤
𝑥
< 29.0.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
erlang
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
1:29.0.3+dfsg-1
fixed
sid
1:29.0.3+dfsg-1
fixed
trixie
vulnerable
Azure Linux logo
Azure Linux Releases
Azure Package
Release
erlang
Azure Linux 3.0
0:26.2.5.21-2.azl3
fixed