CVE-2013-5580

mediumpriority · track · 18EPSS 0.023 · 83 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.32% (83rd) EPSS

CVSS 4.3 · medium

Is it mine?

7 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

The (1) Conn_StartLogin and (2) cb_Read_Resolver_Result functions in conn.c in ngIRCd 18 through 20.2, when the configuration option NoticeAuth is enabled, does not properly handle the return code for the Handle_Write function, which allows remote attackers to cause a denial of service (assertion failure and server crash) via unspecified vectors, related to a "notice auth" message not being sent to a new client.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–4.3

v2.04.3mediumAV:N/AC:M/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v2.03.7lowAV:N/AC:M/Au:N/C:N/I:N/A:P/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (7)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
barton ngircd= 18.0nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*
barton ngircd= 19.0nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*
barton ngircd= 19.1nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*
barton ngircd= 20.0nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*
barton ngircd= 20.1nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*
barton ngircd= 20.2nvdUScpe:2.3:a:barton:ngircd:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2013-10-01modified 2026-06-16

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references (23)

External citations — patches, advisories, analysis.

scry

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