← back
CVE-2026-56788mediumCWE-125

RTKLIB 2.4.3 - Out-of-bounds Read via Negative Array Index in getcodepri

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.8epss 0.1%
exploitation probability
0.1%top 96% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
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
Affected products
tomojitakasu · RTKLIB
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.