CVE-2003-1377

NONECVSS 0.0

0.0

Buffer overflow in the reverse DNS lookup of Smart IRC Daemon (SIRCD) 0.4.0 and 0.4.4 allows remote attackers to execute arbitrary code via a client with a long hostname.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 87.7%
KEV: Not listed

Published

December 31, 2003

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://www.securityfocus.com/archive/1/312924
cve@mitrehttp://www.securityfocus.com/bid/6924
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/11409
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/312924
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/6924
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/11409

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-119Buffer Operations Within Bounds (Buffer Overflow)

Data Freshness Timeline

(refreshed 8× in last 7d / 37× 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.

2026-06-14 23:13 UTCEPSS rescore
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2026-06-13 22:56 UTCEPSS rescore
2026-06-12 23:08 UTCEPSS rescore
2026-06-11 13:55 UTCEPSS rescore
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2026-06-07 15:21 UTCEPSS rescore
2026-06-06 13:44 UTCEPSS rescore
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2026-06-05 22:43 UTCEPSS rescore
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2026-06-04 13:09 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 16:53 UTCEG score recompute
2026-05-31 16:53 UTCGHSA enrichment
2026-05-31 00:13 UTCEPSS rescore
2026-05-31 00:13 UTCEPSS rescore
2026-05-29 13:40 UTCEPSS rescore
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2026-05-28 13:42 UTCEPSS rescore

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2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:37 UTCEPSS rescore
2026-05-26 07:16 UTCEPSS rescore
2026-05-26 07:16 UTCEPSS rescore
2026-05-24 16:42 UTCEPSS rescore
2026-05-22 21:15 UTCEPSS rescore
2026-05-20 22:36 UTCEPSS rescore
2026-05-20 11:20 UTCEPSS rescore
2026-05-20 11:20 UTCEPSS rescore
2026-05-18 21:29 UTCEPSS rescore
2026-05-18 21:29 UTCEPSS rescore

Frequently asked(4)

What is CVE-2003-1377?

CVE-2003-1377 is a none vulnerability published on December 31, 2003. Buffer overflow in the reverse DNS lookup of Smart IRC Daemon (SIRCD) 0.4.0 and 0.4.4 allows remote attackers to execute arbitrary code via a client with a long hostname.

When was CVE-2003-1377 disclosed?

CVE-2003-1377 was first published in the National Vulnerability Database on December 31, 2003, 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-2003-1377 actively exploited?

CVE-2003-1377 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2003-1377?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-1377, 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.

Dependency Blast Radius

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CVE-2003-1377

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2003-1377?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(4)

Related CVEs(same CWE)