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.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
Avoid calling ei_s_print_term with untrusted data whose encoded integer representation could exceed 2000 characters.
Wed, 10 Jun 2026 17:30:00 +0000
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| Metrics |
ssvc
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Wed, 10 Jun 2026 16:00:00 +0000
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| Description | 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. | |
| Title | Stack Buffer Overflow in ei_s_print_term at Very Large Integer | |
| First Time appeared |
Erlang
Erlang erlang\/otp |
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| Weaknesses | CWE-121 | |
| CPEs | cpe:2.3:a:erlang:erlang\/otp:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Erlang
Erlang erlang\/otp |
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| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: EEF
Published:
Updated: 2026-06-10T16:16:28.366Z
Reserved: 2026-06-01T13:45:22.449Z
Link: CVE-2026-49760
Updated: 2026-06-10T16:16:22.977Z
Status : Received
Published: 2026-06-10T16:17:12.947
Modified: 2026-06-10T16:17:12.947
Link: CVE-2026-49760
No data.
OpenCVE Enrichment
Updated: 2026-06-10T17:30:36Z