CVE-2026-56789 Affecting rtklib package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-RTKLIB-17496315
- published26 Jun 2026
- disclosed25 Jun 2026
Introduced: 25 Jun 2026
CVE-2026-56789 (opens in a new tab)How to fix?
There is no fixed version for Debian:12 rtklib.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rtklib package and not the rtklib package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64 satellites per epoch to cause heap buffer overflow writes and out-of-bounds stack reads, crashing RTKLIB-based applications including rnx2rtkp and RTKPOST.