CVE-1999-1580

Exp

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.

Published: 1995-08-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-1580 is rated High Exploit Risk (65.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.11%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-1580

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-1580

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.71% 1.11% +0.41%
2 2026-04-16 0.78% 0.71% -0.07%
3 2025-07-17 — 0.78% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-1580

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-1999-1580

OS Trackers for CVE-1999-1580

vendor priority summary link
debian unimportant CVE-1999-1580 unimportant priority: Debian including 1 source packages (sendmail), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-1999-1580

Affected software / configurations for CVE-1999-1580

Vendor Product Version Raw CPE
sendmail sendmail 5.59 cpe:2.3:a:sendmail:sendmail:5.59:*:*:*:*:*:*:*
sendmail sendmail 5.61 cpe:2.3:a:sendmail:sendmail:5.61:*:*:*:*:*:*:*
sendmail sendmail 5.65 cpe:2.3:a:sendmail:sendmail:5.65:*:*:*:*:*:*:*
sun sunos 4.1.1 cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:*
sun sunos 4.1.2 cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:*
sun sunos 4.1.3 cpe:2.3:o:sun:sunos:4.1.3:*:*:*:*:*:*:*
sun sunos 4.1.3c cpe:2.3:o:sun:sunos:4.1.3c:*:*:*:*:*:*:*
sun sunos 4.1.3u1 cpe:2.3:o:sun:sunos:4.1.3u1:*:*:*:*:*:*:*
sun sunos 4.1.4 cpe:2.3:o:sun:sunos:4.1.4:*:*:*:*:*:*:*
sun sunos 4.1.4jl cpe:2.3:o:sun:sunos:4.1.4jl:*:*:*:*:*:*:*

References for CVE-1999-1580

cvelogic Threat Intelligence