6.9

CVE-2026-49760

Stack Buffer Overflow in ei_s_print_term at Very Large Integer

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Erlang ≫ Erl Interface Version >= 3.7.16 < 5.5.2.1
Erlang ≫ Erl Interface Version >= 5.7 < 5.7.0.1
Erlang ≫ Erl Interface Version >= 5.8 < 5.8.1
Erlang ≫ Erlang/otp Version >= 17.0 < 27.3.4.13
VulnDex Vulnerability Enrichment
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EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.033
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6b3ad84c-e1a6-4bf7-a703-f496b71e49db 6.9 0 0
CVSS: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
CWE-121 Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

https://www.erlang.org/doc/system/versions.html#order-of-versions
Product
https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72j
Vendor Advisory
Mitigation
https://cna.erlef.org/cves/CVE-2026-49760.html
Third Party Advisory
Mitigation
https://osv.dev/vulnerability/EEF-CVE-2026-49760
Third Party Advisory
Mitigation
https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111
Patch