How severe is CVE-2016-2087?

CVE-2016-2087 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2016-2087 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2087?

CVE-2016-2087 affects Hexchat Project Hexchat. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-2087?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-2087 published?

CVE-2016-2087 was published on 2017-01-18 and last updated on 2026-06-17.

CVE-2016-2087

CVE-2016-2087 is a high-severity vulnerability in Hexchat Project Hexchat with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 6.8
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Hexchat Project Hexchat
Published: 2017-01-18
Last modified: 2026-06-17

Description

Directory traversal vulnerability in the client in HexChat 2.11.0 allows remote IRC servers to read or modify arbitrary files via a .. (dot dot) in the server name.

Frequently asked questions

What is CVE-2016-2087?: Directory traversal vulnerability in the client in HexChat 2.11.0 allows remote IRC servers to read or modify arbitrary files via a .. (dot dot) in the server name.
How severe is CVE-2016-2087?: CVE-2016-2087 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2016-2087 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2087?: CVE-2016-2087 affects Hexchat Project Hexchat. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-2087?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-2087 published?: CVE-2016-2087 was published on 2017-01-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:hexchat_project:hexchat:2.11.0:*:*:*:*:*:*:*

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