How severe is CVE-2012-6696?

CVE-2012-6696 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2012-6696 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6696?

CVE-2012-6696 affects Inspircd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-6696?

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

When was CVE-2012-6696 published?

CVE-2012-6696 was published on 2017-09-25 and last updated on 2026-06-16.

CVE-2012-6696

CVE-2012-6696 is a critical-severity vulnerability in Inspircd with a CVSS 3.x base score of 9.8. 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-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Inspircd
Published: 2017-09-25
Last modified: 2026-06-16

Description

inspircd in Debian before 2.0.7 does not properly handle unsigned integers. NOTE: This vulnerability exists because of an incomplete fix to CVE-2012-1836.

Frequently asked questions

What is CVE-2012-6696?: inspircd in Debian before 2.0.7 does not properly handle unsigned integers. NOTE: This vulnerability exists because of an incomplete fix to CVE-2012-1836.
How severe is CVE-2012-6696?: CVE-2012-6696 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2012-6696 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6696?: CVE-2012-6696 affects Inspircd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-6696?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2012-6696 published?: CVE-2012-6696 was published on 2017-09-25 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:inspircd:inspircd:*:*:*:*:*:*:*:*

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