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Vulnerability details: VCID-s52q-nkkg-9bca
Vulnerability ID VCID-s52q-nkkg-9bca
Aliases CVE-2019-0190
Summary A bug exists in the way mod_ssl handled client renegotiations. A remote attacker could send a carefully crafted request that would cause mod_ssl to enter a loop leading to a denial of service. This bug can be only triggered with Apache HTTP Server version 2.4.37 when using OpenSSL version 1.1.1 or later, due to an interaction in changes to handling of renegotiation attempts.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-835 Loop with Unreachable Exit Condition ('Infinite Loop')
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0190.json
epss 0.06786 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.06786 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.06786 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
epss 0.23017 https://api.first.org/data/v1/epss?cve=CVE-2019-0190
apache_httpd important https://httpd.apache.org/security/json/CVE-2019-0190.json
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2019-0190
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2019-0190
archlinux High https://security.archlinux.org/AVG-857
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0190.json
https://api.first.org/data/v1/epss?cve=CVE-2019-0190
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-0190
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://security.gentoo.org/glsa/201903-21
https://security.netapp.com/advisory/ntap-20190125-0001/
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
http://www.securityfocus.com/bid/106743
1668488 https://bugzilla.redhat.com/show_bug.cgi?id=1668488
920220 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=920220
ASA-201901-14 https://security.archlinux.org/ASA-201901-14
AVG-857 https://security.archlinux.org/AVG-857
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:*
cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:*
CVE-2019-0190 https://httpd.apache.org/security/json/CVE-2019-0190.json
CVE-2019-0190 https://nvd.nist.gov/vuln/detail/CVE-2019-0190
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2019-0190.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: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2019-0190
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:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2019-0190
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 0.90979
EPSS Score 0.06786
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:05.770339+00:00 Apache HTTPD Importer Import https://httpd.apache.org/security/json/CVE-2019-0190.json 37.0.0