CVE-2003-0264

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 71%
CISA-KEV: Not listedEPSS: 71%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Multiple buffer overflows in SLMail 5.1.0.4420 allows remote attackers to execute arbitrary code via (1) a long EHLO argument to slmail.exe, (2) a long XTRN argument to slmail.exe, (3) a long string to POPPASSWD, or (4) a long password to the POP3 server.

CVSS v3
—
EG Score
0.0(none)
EPSS
99.3%
KEV
Not listed

Published

May 27, 2003

Last Modified

June 16, 2026

References (8)

Data Freshness Timeline

(refreshed 0× in last 7d / 0× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:07 UTCEPSS rescore
  2. 2026-07-11 08:22 UTCEPSS rescore
  3. 2026-07-11 08:22 UTCEPSS rescore
  4. 2026-07-08 15:09 UTCEPSS rescore
  5. 2026-07-04 06:26 UTCEPSS rescore
  6. 2026-06-23 21:29 UTCEPSS rescore
  7. 2026-06-21 01:56 UTCEPSS rescore
  8. 2026-06-18 17:49 UTCEPSS rescore
  9. 2026-06-18 17:49 UTCEPSS rescore
  10. 2026-06-17 17:49 UTCEPSS rescore
  11. 2026-06-17 17:49 UTCEPSS rescore
  12. 2026-06-16 17:49 UTCEPSS rescore
  13. 2026-06-16 17:49 UTCEPSS rescore
  14. 2026-06-15 17:43 UTCEPSS rescore
  15. 2026-06-14 23:13 UTCEPSS rescore
  16. 2026-06-14 23:13 UTCEPSS rescore
  17. 2026-06-12 23:08 UTCEPSS rescore
  18. 2026-06-11 13:55 UTCEPSS rescore
  19. 2026-06-10 22:13 UTCEPSS rescore
  20. 2026-06-08 14:13 UTCEPSS rescore
  21. 2026-06-06 13:44 UTCEPSS rescore
  22. 2026-06-06 13:44 UTCEPSS rescore
  23. 2026-06-06 13:44 UTCEPSS rescore
  24. 2026-06-05 22:43 UTCEPSS rescore
  25. 2026-06-05 22:43 UTCEPSS rescore
Show 23 more
  1. 2026-06-05 06:07 UTCEPSS rescore
  2. 2026-06-04 13:09 UTCEPSS rescore
  3. 2026-06-02 20:10 UTCEPSS rescore
  4. 2026-06-01 13:49 UTCEPSS rescore
  5. 2026-06-01 13:49 UTCEPSS rescore
  6. 2026-05-31 22:28 UTCEPSS rescore
  7. 2026-05-31 17:36 UTCEG score recompute
  8. 2026-05-31 17:36 UTCGHSA enrichment
  9. 2026-05-31 00:13 UTCEPSS rescore
  10. 2026-05-31 00:13 UTCEPSS rescore
  11. 2026-05-29 13:40 UTCEPSS rescore
  12. 2026-05-29 13:40 UTCEPSS rescore
  13. 2026-05-28 13:42 UTCEPSS rescore
  14. 2026-05-28 13:42 UTCEPSS rescore
  15. 2026-05-28 13:42 UTCEPSS rescore
  16. 2026-05-27 13:37 UTCEPSS rescore
  17. 2026-05-24 16:42 UTCEPSS rescore
  18. 2026-05-22 21:15 UTCEPSS rescore
  19. 2026-05-20 22:36 UTCEPSS rescore
  20. 2026-05-20 11:20 UTCEPSS rescore
  21. 2026-05-20 11:20 UTCEPSS rescore
  22. 2026-05-18 21:29 UTCEPSS rescore
  23. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (4 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-16399✓ verified
    First seen Apr 30, 2010

    Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (Metasploit)

    Open source ↗
  • Exploit-DBEDB-646✓ verified
    First seen Dec 22, 2004

    Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (3)

    Open source ↗
  • Exploit-DBEDB-643✓ verified
    First seen Dec 21, 2004

    Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (2)

    Open source ↗
  • Exploit-DBEDB-638✓ verified
    First seen Nov 18, 2004

    Seattle Lab Mail (SLmail) 5.5 - POP3 'PASS' Remote Buffer Overflow (1)

    Open source ↗
  • Metasploitexploit/windows/pop3/seattlelab_pass✓ verified
    First seen May 7, 2003

    Seattle Lab Mail 5.5 POP3 Buffer Overflow

    Open source ↗

Frequently asked(4)

What is CVE-2003-0264?
CVE-2003-0264 is a none vulnerability published on May 27, 2003. Multiple buffer overflows in SLMail 5.1.0.4420 allows remote attackers to execute arbitrary code via (1) a long EHLO argument to slmail.exe, (2) a long XTRN argument to slmail.exe, (3) a long string to POPPASSWD, or (4) a long password to the POP3 server.
When was CVE-2003-0264 disclosed?
CVE-2003-0264 was first published in the National Vulnerability Database on May 27, 2003, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2003-0264 actively exploited?
CVE-2003-0264 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2003-0264?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-0264, 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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