CVE-2026-49760
Low
No strong exploitation signal.
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | N | None |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2026-06-10 — Published (NVD)
- 2026-07-24 — Last modified (NVD)
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 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.
Affected
References
- https://cna.erlef.org/cves/CVE-2026-49760.html
- https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111
- https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72j
- https://osv.dev/vulnerability/EEF-CVE-2026-49760
- https://www.erlang.org/doc/system/versions.html#order-of-versions