The (1) krshd and (2) v4rcp applications in (a) MIT Kerberos 5 (krb5) up to 1.5, and…
Priority LOW 32CWE-399Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.
Summary
The (1) krshd and (2) v4rcp applications in (a) MIT Kerberos 5 (krb5) up to 1.5, and 1.4.x before 1.4.4, when running on Linux and AIX, and (b) Heimdal 0.7.2 and earlier, do not check return codes for setuid calls, which allows local users to gain privileges by causing setuid to fail to drop privileges using attacks such as resource exhaustion.
Why it matters now
EPSS 0.00528 44th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
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 · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:heimdal:heimdal:0.7.2:*:*:*:*:*:*:* | 0.7.2 | Vulnerable | heimdal |
| cpe:2.3:a:mit:kerberos_5:1.4:*:*:*:*:*:*:* | 1.4 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.4.3:*:*:*:*:*:*:* | 1.4.3 | Vulnerable | moos-ivp |
| cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | moos-ivp |
- cpe:2.3:a:heimdal:heimdal:0.7.2:*:*:*:*:*:*:* Versions 0.7.2 Vulnerable ·heimdal
- cpe:2.3:a:mit:kerberos_5:1.4:*:*:*:*:*:*:* Versions 1.4 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·moos-ivp
- cpe:2.3:a:mit:kerberos_5:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·moos-ivp
Remediation
Red Hat 1 advisory
- RHSA-2006:0612 Released 2006-08-08 · Red Hat rating Importantkrb5 security update
- Red Hat Enterprise Linux AS version 4 krb5-1.3.4-33, krb5-devel-1.3.4-33, krb5-devel-1.3.4-33.i386 +14
- Red Hat Enterprise Linux Desktop version 4 krb5-1.3.4-33, krb5-devel-1.3.4-33, krb5-devel-1.3.4-33.i386 +6
- Red Hat Enterprise Linux ES version 4 krb5-1.3.4-33, krb5-devel-1.3.4-33, krb5-devel-1.3.4-33.i386 +10
- Red Hat Enterprise Linux WS version 4 krb5-1.3.4-33, krb5-devel-1.3.4-33, krb5-devel-1.3.4-33.i386 +10
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2006:0612 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2006:0612 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2006:0612 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2006:0612 |
Timeline
- 2026-10-02 Threatist record created from CVE-2006-3083
- 2026-10-03 Alias added: GHSA-fxvg-34mm-mrcp
References
Advisory 8
Sources
- CVE-2006-3083 · CVE Program
- CVE-2006-3083 · NVD
- FIRST EPSS
- GHSA-fxvg-34mm-mrcp · GitHub Advisory Database · CC BY 4.0
- CVE-2006-3083 · Red Hat security data · CC BY 4.0
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