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Vulnerability details: VCID-bk58-3p66-4yag
Vulnerability ID VCID-bk58-3p66-4yag
Aliases CVE-2019-17559
Summary There is a vulnerability in Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.8, and 8.0.0 to 8.0.5 with a smuggling attack and scheme parsing. Upgrade to versions 7.1.9 and 8.0.6 or later versions.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
System Score Found at
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
epss 0.00923 https://api.first.org/data/v1/epss?cve=CVE-2019-17559
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-17559
cvssv3.1 9.8 https://nvd.nist.gov/vuln/detail/CVE-2019-17559
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2019-17559
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17559
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17565
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1944
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-9481
https://lists.apache.org/thread.html/r99d18d0bc4daa05e7d0e5a63e0e22701a421b2ef5a8f4f7694c43869%40%3Cannounce.trafficserver.apache.org%3E
https://www.debian.org/security/2020/dsa-4672
cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
CVE-2019-17559 https://nvd.nist.gov/vuln/detail/CVE-2019-17559
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-17559
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
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-2019-17559
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.75053
EPSS Score 0.00923
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T12:07:42.470019+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 37.0.0