sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can…
Priority LOW 32Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
sudo, when linked with MIT Kerberos 5 (krb5), does not properly check whether a user can currently authenticate to Kerberos, which allows local users to gain privileges, in a manner unintended by the sudo security model, via certain KRB5_ environment variable settings. NOTE: another researcher disputes this vulnerability, stating that the attacker must be "a user, who can already log into your system, and can already use sudo."
Why it matters now
EPSS 0.00363 30th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mit:kerberos_5:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | moos-ivp |
| cpe:2.3:a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:* | 1.6.8_p12 | Vulnerable | Todd Miller |
- cpe:2.3:a:mit:kerberos_5:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·moos-ivp
- cpe:2.3:a:todd_miller:sudo:1.6.8_p12:*:*:*:*:*:*:* Versions 1.6.8_p12 Vulnerable ·Todd Miller
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2007-3149
- 2026-10-03 Alias added: GHSA-76wc-mqwv-wjv2
References
Sources
- CVE-2007-3149 · CVE Program
- CVE-2007-3149 · NVD
- FIRST EPSS
- GHSA-76wc-mqwv-wjv2 · GitHub Advisory Database · CC BY 4.0
- CVE-2007-3149 · Red Hat security data · CC BY 4.0
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