CVE-2026-46191
HIGHCVSS v3.1: 7.1 · EPSS: 0.0002 (6.9 percentile)
Source data as of:
At a glance
- Severity
- HIGH
- CVSS
- 7.1 v3.1 · NVD
- EPSS
- 0.0002 (6.9 percentile) · FIRST.org
- CISA KEV
- No
- Type
- Out-of-bounds Read · NVD CWE
- Attack conditions (CVSS vector)
- No user interaction · Source: NVD Vector
- Affected vendors
- linux
- Published
- 2026-05-28 · Modified: 2026-06-11
- References
- Jump to references (5)
CVSS / EPSS / KEV
Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources
Description
In the Linux kernel, the following vulnerability has been resolved: fbcon: Avoid OOB font access if console rotation fails Clear the font buffer if the reallocation during console rotation fails in fbcon_rotate_font(). The putcs implementations for the rotated buffer will return early in this case. See [1] for an example. Currently, fbcon_rotate_font() keeps the old buffer, which is too small for the rotated font. Printing to the rotated console with a high-enough character code will overflow the font buffer. v2: - fix typos in commit message
References
Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.
- Reference https://git.kernel.org/stable/c/594973a2e54924d8ba31c9faac669fc1ba6fcb80
- Reference https://git.kernel.org/stable/c/7105d9f1387d63b15c9a860674fc92c959181f2f
- Reference https://git.kernel.org/stable/c/ab6c34b9829d5de03f1d08a47a2253729a6e7e27
- Reference https://git.kernel.org/stable/c/b44cc78ff46b96e72d333a3be6aaaa0a14797263
- Reference https://git.kernel.org/stable/c/e4ef723d8975a2694cc90733a6b888a5e2841842