Out-of-bounds Read in Equinor Surfio
CVE-2026-55211
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.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Equinor Surfio — versions < 0.0.19
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55211?
- CVE-2026-55211 is a critical-severity vulnerability in Equinor Surfio, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2026-09-15.
- How severe is CVE-2026-55211?
- Critical severity. CVSS v3 base score is 9.8 out of 10.