SunOS sendmail 5.59 through 5.65 uses popen to process a forwarding host argument, which…
Priority LOW 34Published · 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
SunOS sendmail 5.59 through 5.65 uses popen to process a forwarding host argument, which allows local users to gain root privileges by modifying the IFS (Internal Field Separator) variable and passing crafted values to the -oR option.
Why it matters now
EPSS 0.01105 66th percentileScored 2026-11-08
Public exploit Yes 1 exploit referenceTagged by NVD
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 · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sendmail:sendmail:5.59:*:*:*:*:*:*:* | 5.59 | Vulnerable | Sendmail |
| cpe:2.3:a:sendmail:sendmail:5.61:*:*:*:*:*:*:* | 5.61 | Vulnerable | Sendmail |
| cpe:2.3:a:sendmail:sendmail:5.65:*:*:*:*:*:*:* | 5.65 | Vulnerable | Sendmail |
| cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:* | 4.1.1 | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:* | 4.1.2 | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.3:*:*:*:*:*:*:* | 4.1.3 | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.3c:*:*:*:*:*:*:* | 4.1.3c | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.3u1:*:*:*:*:*:*:* | 4.1.3u1 | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.4:*:*:*:*:*:*:* | 4.1.4 | Vulnerable | Sun |
| cpe:2.3:o:sun:sunos:4.1.4jl:*:*:*:*:*:*:* | 4.1.4jl | Vulnerable | Sun |
- cpe:2.3:a:sendmail:sendmail:5.59:*:*:*:*:*:*:* Versions 5.59 Vulnerable ·Sendmail
- cpe:2.3:a:sendmail:sendmail:5.61:*:*:*:*:*:*:* Versions 5.61 Vulnerable ·Sendmail
- cpe:2.3:a:sendmail:sendmail:5.65:*:*:*:*:*:*:* Versions 5.65 Vulnerable ·Sendmail
- cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:* Versions 4.1.2 Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.3:*:*:*:*:*:*:* Versions 4.1.3 Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.3c:*:*:*:*:*:*:* Versions 4.1.3c Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.3u1:*:*:*:*:*:*:* Versions 4.1.3u1 Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.4:*:*:*:*:*:*:* Versions 4.1.4 Vulnerable ·Sun
- cpe:2.3:o:sun:sunos:4.1.4jl:*:*:*:*:*:*:* Versions 4.1.4jl Vulnerable ·Sun
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-1999-1580
- 2026-10-03 Alias added: GHSA-qqmr-fh23-w8vj
References
Patch 1
Sources
- CVE-1999-1580 · CVE Program
- CVE-1999-1580 · NVD
- FIRST EPSS
- GHSA-qqmr-fh23-w8vj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences