Public proof of concept

CVE-1999-1588

A public proof of concept exists; no exploitation attested.

Published1999-12-31
WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Buffer overflow in nlps_server in Sun Solaris x86 2.4, 2.5, and 2.5.1 allows remote attackers to execute arbitrary code as root via a long string beginning with "NLPS:002:002:" to the listen (aka System V listener) port, TCP port 2766.

Timeline

dates in UTC

1999-12-3105:00CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-1999-1588?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-1999-1588?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Sun solaris

Branch	Affected	Fixed in	Source
2.4	= 2.4	no fix published	NVD · CISA-ADP
2.5	= 2.5	no fix published	NVD · CISA-ADP
2.5	= 2.5.1	no fix published	NVD · CISA-ADP

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: EDB-20602
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-08-01
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82024-08-01
NVDCVSS 2.010read 2026-10-23
CISA-ADPweakness (CWE)CWE-1192024-08-01
FIRST EPSSEPSS score10.1 %read 2026-10-23
Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 1999-12-31
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-1999-1588?

Is CVE-1999-1588 actively exploited?

Active exploitation of CVE-1999-1588 has not been confirmed. Its EPSS score was 10.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-1999-1588?

CVE-1999-1588 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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