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CVE-2022-3116

25
FAUCET Score

CVE-2022-3116 is a null pointer dereference vulnerability affecting the Heimdal Software Kerberos 5 implementation. An unauthenticated attacker with network access can exploit this flaw to crash applications relying on the vulnerable code path. Rated with a CVSS score of 7.5 (High), this vulnerability allows for denial of service with low attack complexity and no user interaction required. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 7.7.0CPE matchmatch criteria
cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.89%
Probability of exploitation in next 30 days
EPSS Percentile
55.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0089 is in the 30th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia msrc
Product: azl3 samba 4.18.3-1 on Azure Linux 3.0Fixed in: 4.18.3-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 x64Fixed in: 4.18.3-1
microsoftpatch availablevia msrc
Product: Azure Linux 3.0 ARMFixed in: 4.18.3-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 7.7.1-4
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 7.7.1-4

Vendor Advisories (2)

microsoft2024-Oct/CVE-2022-3116

CVE-2022-3116

Oct 8, 2024
microsoft2023-Mar/CVE-2022-3116Important

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.

Mar 14, 2023

References

security.netapp.com / advisory/ntap-20230505-0010
kb.cert.org / vuls/id/730793
Third Party AdvisoryUS Government Resource