Stack-based Buffer Overflow Affecting pavel-odintsov/fastnetmon package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.03% (8th percentile)

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  • Snyk IDSNYK-UNMANAGED-PAVELODINTSOVFASTNETMON-16962952
  • published28 May 2026
  • disclosed26 May 2026
  • creditUnknown

Introduced: 26 May 2026

NewCVE-2026-48686  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the decode_bgp_subnet_encoding_ipv4_raw function. An attacker can execute arbitrary code or cause a crash by sending a specially crafted BGP packet with a manipulated prefix_bit_length value that leads to a stack buffer overflow during the memcpy operation.

CVSS Base Scores

version 4.0
version 3.1