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Vulnerability details: VCID-has1-mf68-q3am
Vulnerability ID VCID-has1-mf68-q3am
Aliases CVE-2023-39456
Summary Improper Input Validation vulnerability in Apache Traffic Server with malformed HTTP/2 frames.This issue affects Apache Traffic Server: from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 9.2.3, which fixes the issue.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07335 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07819 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
epss 0.07819 https://api.first.org/data/v1/epss?cve=CVE-2023-39456
cvssv3.1 7.5 https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q
ssvc Track https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
cvssv3.1 7.5 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/
ssvc Track https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/
cvssv3.1 7.5 https://www.debian.org/security/2023/dsa-5549
ssvc Track https://www.debian.org/security/2023/dsa-5549
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2023-39456
1054427 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1054427
VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q
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:P/P:M/B:A/M:M/D:T/2024-09-13T19:44:04Z/ Found at https://lists.apache.org/thread/5py8h42mxfsn8l1wy6o41xwhsjlsd87q
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/
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:P/P:M/B:A/M:M/D:T/2024-09-13T19:44:04Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JIZSEFC3YKCGABA2BZW6ZJRMDZJMB7PJ/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
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:P/P:M/B:A/M:M/D:T/2024-09-13T19:44:04Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VHUHTSXLXGXS7JYKBXTA3VINUPHTNGVU/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/
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:P/P:M/B:A/M:M/D:T/2024-09-13T19:44:04Z/ Found at https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZKQSIKIAT5TJ3WSLU3RDBQ35YX4GY4V3/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://www.debian.org/security/2023/dsa-5549
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:P/P:M/B:A/M:M/D:T/2024-09-13T19:44:04Z/ Found at https://www.debian.org/security/2023/dsa-5549
Exploit Prediction Scoring System (EPSS)
Percentile 0.91664
EPSS Score 0.07335
Published At April 2, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T19:10:50.166581+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.21/community.json 38.0.0