CVE-2026-56788
RTKLIB 2.4.3 - Out-of-bounds Read via Negative Array Index in getcodepri
MEDIUM 4.8EPSS 0.2%
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.
- Affected
- tomojitakasu · RTKLIB
- CVSS v4.0 VULNCHECK
- 4.8 MEDIUM
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 NVD
- 7.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H - CVSS v3.1 VULNCHECK
- 4.4 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L - EPSS
- 0.17% chance of exploitation in the next 30 days, 6th percentile
- Published
- 2026-06-25
- Updated
- 2026-07-14
Proof-of-concept exploits (1)
- tomojitakasu/RTKLIB/issues/7973153★ · 2024-05-28