Heap-based Buffer Overflow Affecting rtklib package, versions [0,]


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.42% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Heap-based Buffer Overflow vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CONAN-RTKLIB-19272174
  • published27 Aug 2026
  • disclosed25 Jun 2026
  • creditUnknown

Introduced: 25 Jun 2026

CVE-2026-56789  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

There is no fixed version for rtklib.

Overview

Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the readrnxobsb function when processing RINEX files with an oversized satellite count in the epoch header. An attacker can cause memory corruption and application crashes by supplying a malicious RINEX file that declares more than 64 satellites per epoch.

CVSS Base Scores

version 4.0
version 3.1