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vulnerability

CVE-2025-32463

9.3
Critical
KEV · Exploited in wildEPSS 55%Patch available

Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the --chroot option.

exploited
Yes, in CISA KEV since 29 Sept 2025fix by 20 Oct 2025 (CISA deadline for US federal agencies)public exploit code
fix
Patch available see the advisory in the references
likelihood
EPSS 55.5%
Published 30 Jun 2025Analysed here 2 Nov 2026CVSS scored by the publisher (CNA)

do firstApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

triage
surface unknownruntimeWAF can block: noAV · localCWE-829· Common Weakness

Can a WAF block it? No. The attack needs local access to the machine, so a WAF is not on its path.

Also consider: patch

Based on the attack vector (local or physical access). We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.

cvss vector
attack vectorlocalattack complexitylowprivileges requirednoneuser interactionnonescopechangedconfidentialityhighintegrityhighavailabilityhigh
CVSS 3.1 · CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
common questions

Is CVE-2025-32463 being exploited?

Yes. CVE-2025-32463 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2025-32463?

CVE-2025-32463 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2025-32463?

Yes. A fix has been recorded for CVE-2025-32463. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2025-32463 affect?

CVE-2025-32463 affects sudo_project:sudo, canonical:ubuntu_linux, debian:debian_linux, opensuse:leap, and 4 further products or versions. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
sudo_project:sudocanonical:ubuntu_linuxdebian:debian_linuxopensuse:leapredhat:enterprise_linuxsuse:linux_enterprise_desktopsuse:linux_enterprise_real_timesuse:linux_enterprise_server_for_sap
affected versions
Sudo project Sudo
  • affected>= 1.9.14 and < 1.9.17p1

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

public exploits

Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 69 GitHub proofs of concept

Exploit-DB
Metasploit
GitHub proofs of concept
+65 more repositories

Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.

cisa ssvc

exploitation
active
automatable
no
technical impact
total

Assessed by CISA 27 Sept 2025 (SSVC 2.0.3).

timeline

  1. 30 Jun 2025Published
  2. 1 Jul 2025First public exploit or proof of concept · same day later
  3. 27 Sept 2025CISA SSVC assessment: exploitation active · 88 days (about 3 months) later
  4. 29 Sept 2025Added to CISA KEV (exploited in the wild) · 2 days later
  5. 20 Oct 2025CISA remediation due date (US federal agencies) · 21 days later
  6. 26 Feb 2026CVE record last updated · 130 days (about 4 months) later
  7. 2 Nov 2026Analysed by vulneraibility.com · 249 days (about 8 months) later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
NVDCVE.orgCVE DetailsSource
17 references in the CVE record: 1 exploit, 16 links
Show 9 more
  • Linkexplore.alas.aws.amazon.com /CVE-2025-32463.html
  • Linkbugs.gentoo.org /show_bug.cgi?id=CVE-2025-32463
  • Linksuse.com /support/update/announcement/2025/suse-su-202502177-1/
  • Linksuse.com /security/cve/CVE-2025-32463.html
  • Linksecpod.com /blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-324
  • Linksudo.ws /security/advisories/chroot_bug/
  • Linkvicarius.io /vsociety/posts/cve-2025-32463-detect-sudo-vulnerability
  • Linkvicarius.io /vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability
  • Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32463

sources

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