Description
RTKLIB through 2.4.3 contains an off-by-one out-of-bounds read vulnerability in the decode_ssr3 function at src/rtcm3.c:1446 that allows remote attackers to trigger a global buffer overflow via crafted RTCM3 SSR messages with attacker-controlled signal mode fields. Remote attackers can exploit this vulnerability by sending malicious SSR correction streams over NTRIP or serial connections to cause denial of service or crash RTKLIB rovers and CORS servers.
Severity (CVSS)
| Base score | 6.9 |
|---|---|
| Severity | Medium |
| Version | CVSS 4.0 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N |
| Provided by | CNA |
Weaknesses
- CWE-193 — Off-by-one Error
Affected products
| Vendor | Product | Versions |
|---|---|---|
| tomojitakasu | RTKLIB | 0 to <=2.4.3 |
References
- https://github.com/tomojitakasu/RTKLIB/issues/798 (technical-description exploit)
- https://www.vulncheck.com/advisories/rtklib-off-by-one-out-of-bounds-read-in-decode-ssr3-via-rtcm3-ssr-message (third-party-advisory)
Generated from the official CVE List on 26 Jun 2026 07:05 UTC.