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CVE-2026-56786
9.3 CRITICAL
- CVSS version (CVSS): 4.0
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Attack Requirement (AT): None (N)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Vulnerable System Impact Confidentiality (VC): High (H)
- Vulnerable System Impact Integrity (VI): High (H)
- Vulnerable System Impact Availability (VA): High (H)
- Subsequent System Impact Confidentiality (SC): None (N)
- Subsequent System Impact Integrity (SI): None (N)
- Subsequent System Impact Availability (SA): None (N)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Attack Requirement (MAT): None (N)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Vulnerable System Impact Confidentiality (MVC): High (H)
- Modified Vulnerable System Impact Integrity (MVI): High (H)
- Modified Vulnerable System Impact Availability (MVA): High (H)
- Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
- Modified Subsequent System Impact Integrity (MSI): Negligible (N)
- Modified Subsequent System Impact Availability (MSA): Negligible (N)
- Safety (S): Not Defined (X)
- Automatable (AU): Not Defined (X)
- Recovery (R): Not Defined (X)
- Value Density (V): Not Defined (X)
- Vulnerability Response Effort (RE): Not Defined (X)
- Provider Urgency (U): Not Defined (X)
- Confidentiality Req. (CR): Not Defined (X)
- Integrity Req. (IR): Not Defined (X)
- Availability Req. (AR): Not Defined (X)
- Exploit Maturity (E): Not Defined (X)
Activity log
- Created suggestion
RTKLIB 2.4.3 - Out-of-bounds Write in decode_type1033 via Crafted RTCM3 Message
RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially achieving arbitrary code execution or denial of service.
References
-
-
https://www.vulncheck.com/advisories/rtklib-out-of-bounds-write-in-decode-type1… third-party-advisory
Affected products
RTKLIB
- =<2.4.3
Matching in nixpkgs
pkgs.rtklib-ex
Open Source Program Package for GNSS Positioning
pkgs.indi-3rdparty.indi-rtklib
Third party drivers for the INDI astronomical software suite
-
nixos-unstable 3rdparty-indi-rtklib-2.2.0
- nixpkgs-unstable 3rdparty-indi-rtklib-2.2.0
- nixos-unstable-small 3rdparty-indi-rtklib-2.2.0
-
nixos-26.05 3rdparty-indi-rtklib-2.2.0
- nixos-26.05-small 3rdparty-indi-rtklib-2.2.0
- nixpkgs-26.05-darwin 3rdparty-indi-rtklib-2.2.0
Package maintainers
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@returntoreality Linus Karl <linus@lotz.li>
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@sheepforce Phillip Seeber <phillip.seeber@googlemail.com>
-
@skaphi Oskar Philipsson <oskar.philipsson@gmail.com>