How severe is CVE-2022-3116?

CVE-2022-3116 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-3116 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-3116?

CVE-2022-3116 affects Heimdal Project Heimdal. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-3116?

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-2022-3116 published?

CVE-2022-3116 was published on 2023-03-27 and last updated on 2026-06-17.

CVE-2022-3116

CVE-2022-3116 is a high-severity vulnerability in Heimdal Project Heimdal with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Heimdal Project Heimdal
Published: 2023-03-27
Last modified: 2026-06-17

Description

The Heimdal Software Kerberos 5 implementation is vulnerable to a null pointer dereferance. An attacker with network access to an application that depends on the vulnerable code path can cause the application to crash.

Frequently asked questions

What is CVE-2022-3116?: The Heimdal Software Kerberos 5 implementation is vulnerable to a null pointer dereferance. An attacker with network access to an application that depends on the vulnerable code path can cause the application to crash.
How severe is CVE-2022-3116?: CVE-2022-3116 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-3116 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-3116?: CVE-2022-3116 affects Heimdal Project Heimdal. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-3116?: 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-2022-3116 published?: CVE-2022-3116 was published on 2023-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*

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Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →