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CVE-2026-55211

9.8 · CRITICAL

Surfio is a library for reading and writing surface files.

Published Sep 15, 2026CWE-125EPSS 0.74%

Overview

CVE-2026-55211 is a critical-severity vulnerability. It was published on September 15, 2026 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Surfio is a library for reading and writing surface files. Prior to 0.0.19, surfio does not correctly validate size fields in IRAP files, leading to a buffer overflow when untrusted files are parsed. The severity assumes surfio is used to parse untrusted files in a networking context such as a web service. This issue is fixed in version 0.0.19.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/equinor/surfio/commit/1619750bce28e39c4f378d2fb6d28b72380a12aaGitHubgithub.com/equinor/surfio/commit/e009c0cad145484f854aeb22d1979f9216b291dbGitHubgithub.com/equinor/surfio/pull/86GitHubgithub.com/equinor/surfio/releases/tag/0.0.19GitHubgithub.com/equinor/surfio/security/advisories/GHSA-rcr2-hggw-43wm

How CyberStrike helps

Frequently asked questions

What is CVE-2026-55211?

CVE-2026-55211 is a critical-severity vulnerability. It was published on September 15, 2026 and has a CVSS 3.0 base score of 9.8 (CRITICAL).

How severe is CVE-2026-55211?

This vulnerability has a CVSS 3.0 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-55211?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-55211?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-55211 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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