THREATPORT/VULNERABILITY/CVE-2016-2233
HIGH SEVERITY

CVE-2016-2233

Hexchat vulnerability

CVSS
7.5
EPSS
34.9%
EPSS pct
98th
Exploited
No known
Stack-based buffer overflow in the inbound_cap_ls function in common/inbound.c in HexChat 2.10.2 allows remote IRC servers to cause a denial of service (crash) via a large number of options in a CAP LS message.
Affected vendor
Hexchat Project
Affected product
Hexchat
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-119 — Improper Restriction of Operations within Memory Bounds
Published
2017-01-18

Risk analysis

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

Its EPSS score of 34.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2016-2233

  • Confirm whether Hexchat Project Hexchat is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2016-2233.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2016-2233

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2016-2233 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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