PT-2026-52551 · Tomojitakasu · Rtklib

Fuzzinglabs · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-56788

Mitre

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

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.

Exploit

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-56788

Affected Products

Rtklib

References · 3

• 🔥 https://github.com/tomojitakasu/RTKLIB/issues/797 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-56788 · Security Note
• https://vulncheck.com/advisories/rtklib-out-of-bounds-read-via-negative-array-index-in-getcodepri · Note