CVE-2013-0238

Ircd Hybrid vulnerability

CVSS

5.0

EPSS

10.0%

EPSS pct

95th

Exploited

No known

The try_parse_v4_netmask function in hostmask.c in IRCD-Hybrid before 8.0.6 does not properly validate masks, which allows remote attackers to cause a denial of service (crash) via a mask that causes a negative number to be parsed.

Affected vendor

Ircd Hybrid

Affected product

Ircd Hybrid

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Weakness type (CWE)

CWE-20 — Improper Input Validation

Published

2013-02-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 10.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2013-0238

Confirm whether Ircd Hybrid Ircd Hybrid is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2013-0238.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-0238

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