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Vulnerability details: VCID-am4a-hwtd-uybh
Vulnerability ID VCID-am4a-hwtd-uybh
Aliases CVE-2019-25033
Summary unbound: integer overflow in the regional allocator via the ALIGN_UP macro
Status Disputed
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-190 Integer Overflow or Wraparound
System Score Found at
cvssv3 9.8 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-25033.json
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
epss 0.00324 https://api.first.org/data/v1/epss?cve=CVE-2019-25033
cvssv3.1 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
ssvc Track https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
ssvc Track https://security.netapp.com/advisory/ntap-20210507-0007/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-25033.json
https://api.first.org/data/v1/epss?cve=CVE-2019-25033
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-25033
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1954775 https://bugzilla.redhat.com/show_bug.cgi?id=1954775
msg00007.html https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
ntap-20210507-0007 https://security.netapp.com/advisory/ntap-20210507-0007/
our-audit-of-unbound-dns-by-x41-d-sec-full-results https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
RHSA-2022:7622 https://access.redhat.com/errata/RHSA-2022:7622
RHSA-2024:0749 https://access.redhat.com/errata/RHSA-2024:0749
USN-4938-1 https://usn.ubuntu.com/4938-1/
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://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-25033.json
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:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T20:24:46Z/ Found at https://lists.debian.org/debian-lts-announce/2021/05/msg00007.html
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T20:24:46Z/ Found at https://ostif.org/our-audit-of-unbound-dns-by-x41-d-sec-full-results/
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-06-26T20:24:46Z/ Found at https://security.netapp.com/advisory/ntap-20210507-0007/
Exploit Prediction Scoring System (EPSS)
Percentile 0.55331
EPSS Score 0.00324
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-03T13:11:28.500995+00:00 NVD CVE Status Improver Improve https://cveawg.mitre.org/api/cve/CVE-2019-25033 38.1.0
2026-04-01T14:14:52.403682+00:00 RedHat Importer Import https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-25033.json 38.0.0