CVE-1999-0006

CRITICALNVD 9.89.8—Weaponized

9.8

Buffer overflow in POP servers based on BSD/Qualcomm's qpopper allows remote attackers to gain root access using a long PASS command.

CVSS v3: 9.8
EG Score: 9.8(medium)
EPSS: 92.0%
KEV: Not listed

Published

July 14, 1998

Last Modified

April 16, 2026

Advisory Details (1)

Auto-updated May 1, 2026

No patch confirmed yet.

generic

http://www.securityfocus.com/bid/133

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
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2026-05-27 13:37 UTCepss_batch
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2026-05-26 13:41 UTCepss_batch
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2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-23 00:10 UTCEG score recompute
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:38 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 08:10 UTCEG score recompute

Publicly available exploits

(2 references)

Working exploit code is in the public domain (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-19109✓ verified
First seen Jun 27, 1998
Qualcomm qpopper 2.4 - POP Server Buffer Overflow (1)
Open source ↗
Exploit-DBEDB-19110✓ verified
First seen Jun 27, 1998
Qualcomm qpopper 2.4 - POP Server Buffer Overflow (2)
Open source ↗

Frequently asked(5)

What is CVE-1999-0006?

CVE-1999-0006 is a critical vulnerability published on July 14, 1998. Buffer overflow in POP servers based on BSD/Qualcomm's qpopper allows remote attackers to gain root access using a long PASS command.

When was CVE-1999-0006 disclosed?

CVE-1999-0006 was first published in the National Vulnerability Database on July 14, 1998, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-0006 actively exploited?

CVE-1999-0006 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-1999-0006?

CVE-1999-0006 has a CVSS v3 base score of 9.8 (NVD).

How do I remediate CVE-1999-0006?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0006, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-1999-0006

📅 Published

🔄 Last Modified

📋 Advisory Details (1)