Security readout for executives and security teams
Plain-English summary
This is a local privilege escalation in sudo. A user who can run code on a vulnerable Linux or Unix host may be able to become root by abusing sudo's --chroot handling. Because sudo is widely installed and CISA KEV marks this as exploited, remediation should be treated as urgent.
Executive priority
Treat as critical and time-sensitive. This is not a remote initial-access bug, but it can turn any local foothold into full system control on affected hosts.
Technical view
Sudo before 1.9.17p1 can load /etc/nsswitch.conf from a user-controlled chroot directory when --chroot is used, allowing local privilege escalation to root. The record maps this to CWE-829 and CVSS 9.3. Exposure depends on packaged sudo versions and vendor backports.
Likely exposure
Potentially broad across Linux and Unix systems with vulnerable sudo packages, especially multi-user servers, developer workstations, bastion hosts, and shared compute environments. Confirm exposure through distro advisories rather than upstream version alone.
Exploitation context
The bundle indicates CISA KEV status, so known exploitation is supported. The vulnerability requires local execution context, but successful exploitation can give root privileges, making compromised low-privilege accounts much more dangerous.
Researcher notes
Evidence is strongest for upstream sudo before 1.9.17p1 and multiple distro advisories. The supplied affected list is sparse, so package-level exposure must be validated per vendor. Avoid assuming all systems with older-looking version strings are vulnerable because distributions may backport fixes.
Mitigation direction
- Upgrade sudo to 1.9.17p1 or a vendor-fixed package.
- Prioritize systems with local users, SSH access, or shared administrative workflows.
- Check Red Hat, Ubuntu, Debian, Amazon Linux, Gentoo, and SUSE advisories for package status.
- Limit unnecessary local shell access until affected systems are patched.
- Track CISA KEV remediation timelines where applicable.
Validation and detection
- Inventory installed sudo packages across servers, workstations, containers, and images.
- Compare package versions against vendor security advisories, including backported fixes.
- Verify patched builds are deployed, not just downloaded or staged.
- Review asset classes with local accounts for emergency prioritization.
- Confirm vulnerability scanners use vendor-aware detection logic.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-829: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-32463 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.3 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H2.56Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.3CriticalVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.sudo.ws/security/advisories/CVE reference
- https://www.sudo.ws/releases/changelog/CVE reference
- https://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chrootCVE reference
- https://www.openwall.com/lists/oss-security/2025/06/30/3CVE reference
- https://access.redhat.com/security/cve/cve-2025-32463CVE reference
- https://ubuntu.com/security/notices/USN-7604-1CVE reference
- https://security-tracker.debian.org/tracker/CVE-2025-32463CVE reference
- https://explore.alas.aws.amazon.com/CVE-2025-32463.htmlCVE reference
- https://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463CVE reference
- https://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/CVE reference
- https://www.suse.com/security/cve/CVE-2025-32463.htmlCVE reference
- https://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/CVE reference
- https://www.sudo.ws/security/advisories/chroot_bug/CVE reference
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerabilityCVE reference
- https://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerabilityCVE reference
- https://iototsecnews.jp/2025/07/01/linux-sudo-chroot-vulnerability-enables-hackers-to-elevate-privileges-to-root/CVE reference · exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Inclusion of Functionality from Untrusted Control Sphere
Inclusion of Functionality from Untrusted Control Sphere represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.