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Vulnerability details: VCID-38cq-p1jy-aaag
Vulnerability ID VCID-38cq-p1jy-aaag
Aliases CVE-2021-30641
Summary Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
generic_textual Medium http://httpd.apache.org/security/vulnerabilities_24.html
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30641.html
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4257
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4613
rhas Moderate https://access.redhat.com/errata/RHSA-2021:4614
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30641.json
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00337 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00946 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00946 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00946 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.00946 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.17045 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.17045 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.17045 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.21348 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.24561 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
epss 0.60807 https://api.first.org/data/v1/epss?cve=CVE-2021-30641
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1966743
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
cvssv3.1 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd moderate https://httpd.apache.org/security/json/CVE-2021-30641.json
generic_textual Medium https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2021-30641
generic_textual Medium https://lists.apache.org/thread.html/r2b4773944d83d2799de9fbaeee7fe0f3fd72669467787e02f434cb10@%3Cannounce.httpd.apache.org%3E
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2021-30641
cvssv3 5.3 https://nvd.nist.gov/vuln/detail/CVE-2021-30641
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2021-30641
archlinux Medium https://security.archlinux.org/AVG-2053
generic_textual Medium https://ubuntu.com/security/notices/USN-4994-1
generic_textual Medium https://ubuntu.com/security/notices/USN-4994-2
cvssv3.1 8.2 https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual HIGH https://www.oracle.com/security-alerts/cpuoct2021.html
generic_textual Medium http://www.openwall.com/lists/oss-security/2021/06/10/8
Reference id Reference type URL
http://httpd.apache.org/security/vulnerabilities_24.html
http://people.canonical.com/~ubuntu-security/cve/2021/CVE-2021-30641.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30641.json
https://api.first.org/data/v1/epss?cve=CVE-2021-30641
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35452
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26690
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26691
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30641
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31618
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2021-30641
https://lists.apache.org/thread.html/r2b4773944d83d2799de9fbaeee7fe0f3fd72669467787e02f434cb10@%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/r2b4773944d83d2799de9fbaeee7fe0f3fd72669467787e02f434cb10%40%3Cannounce.httpd.apache.org%3E
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd@%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E
https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
https://security.gentoo.org/glsa/202107-38
https://security.netapp.com/advisory/ntap-20210702-0001/
https://ubuntu.com/security/notices/USN-4994-1
https://ubuntu.com/security/notices/USN-4994-2
https://www.debian.org/security/2021/dsa-4937
https://www.oracle.com/security-alerts/cpuoct2021.html
http://www.openwall.com/lists/oss-security/2021/06/10/8
1966743 https://bugzilla.redhat.com/show_bug.cgi?id=1966743
AVG-2053 https://security.archlinux.org/AVG-2053
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:*
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:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
CVE-2021-30641 https://httpd.apache.org/security/json/CVE-2021-30641.json
CVE-2021-30641 https://nvd.nist.gov/vuln/detail/CVE-2021-30641
RHSA-2021:4257 https://access.redhat.com/errata/RHSA-2021:4257
RHSA-2021:4613 https://access.redhat.com/errata/RHSA-2021:4613
RHSA-2021:4614 https://access.redhat.com/errata/RHSA-2021:4614
USN-4994-1 https://usn.ubuntu.com/4994-1/
USN-4994-2 https://usn.ubuntu.com/4994-2/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-30641.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:H/PR:N/UI:N/S:U/C:N/I:H/A:N 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: AV:N/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30641
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:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30641
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:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2021-30641
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:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N Found at https://www.oracle.com/security-alerts/cpuoct2021.html
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 0.71811
EPSS Score 0.00337
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.