What is the CVSS score of CVE-2026-26738?

CVE-2026-26738 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of Spacesniffer are affected by CVE-2026-26738?

A high-severity buffer overflow vulnerability in SpaceSniffer v2.0.5.18 allows attackers to execute arbitrary code by sending malicious snapshot files to affected systems.

How to fix or mitigate CVE-2026-26738?

Within 24 hours: Identify all systems running SpaceSniffer v2.0.5.18 and assess business criticality. Within 7 days: Implement network segmentation to restrict file sharing mechanisms, disable remote file opening features in SpaceSniffer, and establish monitoring for suspicious .sns file activity. Within 30 days: Evaluate alternative disk analysis tools, plan migration from affected version, and consider upgrading to a patched release once available from vendor.

Spacesniffer CVE-2026-26738

HIGH

Stack-based Buffer Overflow (CWE-121)

2026-03-10 cve@mitre.org

Buffer Overflow RCE Stack Overflow Spacesniffer

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 10, 2026 - 18:18 nvd

HIGH 7.8

DescriptionCVE.org

Buffer Overflow vulnerability in Uderzo Software SpaceSniffer v.2.0.5.18 allows a remote attacker to execute arbitrary code via a crafted .sns snapshot file.

AnalysisAI

Arbitrary code execution in Uderzo Software SpaceSniffer v.2.0.5.18 results from a buffer overflow vulnerability triggered by processing malicious .sns snapshot files. An attacker with local access can craft a specially formatted file to achieve code execution with high privileges. No patch is currently available for this vulnerability.

Technical ContextAI

Classified as CWE-121 (Stack-based Buffer Overflow). Affects Uderzo Software SpaceSniffer v.2.0.5.18. Buffer Overflow vulnerability in Uderzo Software SpaceSniffer v.2.0.5.18 allows a remote attacker to execute arbitrary code via a crafted .sns snapshot file.