Description
RTKLIB through 2.4.3 contains an out-of-bounds read vulnerability in getcodepri function when processing unrecognized RINEX observation codes, allowing attackers to trigger denial of service. Crafted RINEX files with unknown observation types cause negative array indexing into the codepris table, resulting in reliable crashes and potential memory disclosure of adjacent global data.
Published: 2026-06-25
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Sat, 27 Jun 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 26 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Tomojitakasu
Tomojitakasu rtklib
Vendors & Products Tomojitakasu
Tomojitakasu rtklib

Thu, 25 Jun 2026 18:30:00 +0000

Type Values Removed Values Added
Description RTKLIB through 2.4.3 contains an out-of-bounds read vulnerability in getcodepri function when processing unrecognized RINEX observation codes, allowing attackers to trigger denial of service. Crafted RINEX files with unknown observation types cause negative array indexing into the codepris table, resulting in reliable crashes and potential memory disclosure of adjacent global data.
Title RTKLIB 2.4.3 - Out-of-bounds Read via Negative Array Index in getcodepri
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 4.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L'}

cvssV4_0

{'score': 4.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N'}


Subscriptions

Tomojitakasu Rtklib
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-27T02:26:39.345Z

Reserved: 2026-06-23T01:24:27.651Z

Link: CVE-2026-56788

cve-icon Vulnrichment

Updated: 2026-06-27T02:20:29.784Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T09:36:33Z

Weaknesses