CVE-2026-49760

MEDIUM EPSS 3.4%
Published Jun 10, 20262w ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Jun 10, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
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
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
3.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-121

Affected Products 6

VendorProductVersionRange
erlangerl_interface*≥3.7.16  –  <5.5.2.1
erlangerl_interface*≥5.7  –  <5.7.0.1
erlangerl_interface*≥5.8  –  <5.8.1
erlangerlang\/otp*≥17.0  –  <27.3.4.13
erlangerlang\/otp*≥28.0  –  <28.5.0.2
erlangerlang\/otp*≥29.0  –  <29.0.2

References 5

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

Remediation

  • github.com https://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111
    Patch