Vulnerability · Published Oct 13, 2026 · Assigned by VulnCheck

CVE-2026-35001OpenS100 S-102 Parser Integer Overflow Heap Buffer Overflow

High 7.0

In plain English

A high-severity integer overflow in OpenS100 from OpenS100 Project. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)7.0High

Exploit odds (30 days)0.1%top 97.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

OpenS100 through commit 2b1dafc contains an integer overflow vulnerability in the S-102 Bathymetric Surface parser. An attacker can supply a crafted S-102 HDF5 file with malicious grid dimension metadata that causes memory corruption when a user opens it. In the S102_VG_BathymetryCoverage::Read() function, the numPointsLatitudinal and numPointsLongitudinal values are multiplied without validation, and the 32-bit result can wrap around, producing an undersized heap buffer allocation. Subsequent writes past the end of that buffer cause a heap-based buffer overflow, leading to an application crash or potential arbitrary code execution in the context of the user who opened the file.

Affected products (as reported)

Vendor	Product	Versions
OpenS100 Project	OpenS100	0 – through 2b1dafc11332a0a68930c687bde57b2e41074342

Weakness: CWE-190, CWE-122 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Research Paper technical-description, exploit
VulnCheck Advisory: OpenS100 S-102 Parser Integer Overflow Heap Buffer Overflow third-party-advisory