CVE-2026-82474

HIGH 7.8

Sudo through 1.9.17p2 Intercept Policy Bypass via execveat

CVSS Score

7.8

EPSS Score

0.0%

EPSS Percentile

0th

Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.

CWE	CWE-693
Vendor	sudo-project
Product	sudo
Published	Aug 29, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

sudo-project / sudo

0 ≤ 1.9.17p2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/sudo-project/sudo/commit/71fbe42dcd5a1c8f799540583a2dfb2ae6221edf github.com: https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c github.com: https://github.com/sudo-project/sudo vulncheck.com: https://www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveat

Credits

XlabAI Team of Tencent Xuanwu Lab Guannan Wang Zhanpeng Liu Guancheng Li Nofil Qasim Quentin Chalabi