Out-of-bounds Write Affecting libsmi package, versions *


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-LIBSMI-21004947
  • published16 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-111137  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest libsmi.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsmi package and not the libsmi package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

libsmi through 0.5.0 contains an out-of-bounds write vulnerability in smiValueAsString() in lib/smi.c that allows attackers to overflow a fixed 1024-byte static buffer through hex rendering of OCTET STRING values. Attackers can supply a crafted MIB with an OCTET STRING DEFVAL of 512 or more octets and a leading 0x00 byte to corrupt adjacent library globals and crash smidump or other consumers.

CVSS Base Scores

version 3.1