# CVE-2026-82474 — sudo-project sudo

> As of 2026-08-29, CVE-2026-82474 is a HIGH-severity vulnerability in sudo-project sudo, CVSS v3.1 7.8, EPSS 0.1% (2.9th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-82474 as of 2026-08-29; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-29

## What is CVE-2026-82474?

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.

The record classifies CVE-2026-82474 under weakness class [CWE-693](https://intel.threadlinqs.com/cwe/CWE-693). Its CVSS v3 base vector states that the flaw requires local access to the host, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 37 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 7.8 — HIGH (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **CVSS v4.0 base score:** 8.5 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 2.9% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-29

## Is CVE-2026-82474 being exploited?

It currently carries a trending score of 30 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **sudo-project**: sudo

## How to fix CVE-2026-82474

No vendor patch reference has been recorded for CVE-2026-82474 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-82474

No threat campaign in the Threadlinqs corpus currently references CVE-2026-82474, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on 2026-08-30. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — patch](https://github.com/sudo-project/sudo/commit/71fbe42dcd5a1c8f799540583a2dfb2ae6221edf)

**Technical analysis**

- [github.com — technical description](https://github.com/sudo-project/sudo/blob/v1.9.17p2/src/exec_ptrace.c)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/sudo-through-1.9-17p2-intercept-policy-bypass-via-execveat)

**Issue tracking and product pages**

- [github.com — product](https://github.com/sudo-project/sudo)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-82474
Full detection coverage and IOCs for threats exploiting CVE-2026-82474 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp