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Vulnerability details: VCID-t38q-h456-r3af
Vulnerability ID VCID-t38q-h456-r3af
Aliases CVE-2022-44640
Summary Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the ASN.1 codec used by the Key Distribution Center (KDC).
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
epss 0.01956 https://api.first.org/data/v1/epss?cve=CVE-2022-44640
cvssv3.1 9.8 https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4
ssvc Track https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2022-44640
cvssv3.1 9.8 https://security.gentoo.org/glsa/202310-06
ssvc Track https://security.gentoo.org/glsa/202310-06
cvssv3.1 9.8 https://security.netapp.com/advisory/ntap-20230216-0008/
ssvc Track https://security.netapp.com/advisory/ntap-20230216-0008/
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2022-44640
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3671
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44758
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3437
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-41916
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-42898
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-44640
1024187 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1024187
202310-06 https://security.gentoo.org/glsa/202310-06
cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
CVE-2022-44640 https://nvd.nist.gov/vuln/detail/CVE-2022-44640
GHSA-88pm-hfmq-7vv4 https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4
ntap-20230216-0008 https://security.netapp.com/advisory/ntap-20230216-0008/
USN-5800-1 https://usn.ubuntu.com/5800-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-04-15T13:20:08Z/ Found at https://github.com/heimdal/heimdal/security/advisories/GHSA-88pm-hfmq-7vv4
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2022-44640
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://security.gentoo.org/glsa/202310-06
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-04-15T13:20:08Z/ Found at https://security.gentoo.org/glsa/202310-06
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://security.netapp.com/advisory/ntap-20230216-0008/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:T/P:M/B:A/M:M/D:T/2025-04-15T13:20:08Z/ Found at https://security.netapp.com/advisory/ntap-20230216-0008/
Exploit Prediction Scoring System (EPSS)
Percentile 0.82709
EPSS Score 0.01956
Published At Aug. 14, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:05.020157+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.22/main.json 37.0.0