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Vulnerability details: VCID-4hgn-pxc6-2qh2
Vulnerability ID VCID-4hgn-pxc6-2qh2
Aliases CVE-2020-11985
Summary For configurations using proxying with mod_remoteip and certain mod_rewrite rules, an attacker could spoof their IP address for logging and PHP scripts. Note this issue was fixed in Apache HTTP Server 2.4.24 but was retrospectively allocated a low severity CVE in 2020.
Status Published
Exploitability 0.5
Weighted Severity 4.8
Risk 2.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-345 Insufficient Verification of Data Authenticity
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-11985.json
epss 0.36323 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.36323 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.36323 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
epss 0.45617 https://api.first.org/data/v1/epss?cve=CVE-2020-11985
cvssv3.1 7.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2020-11985.json
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2020-11985
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2020-11985
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-11985.json
https://api.first.org/data/v1/epss?cve=CVE-2020-11985
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11985
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9%40%3Ccvs.httpd.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A2RN46PRBJE7E7OPD4YZX5SVWV5QKGV5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HYVYE2ZERFXDV6RMKK3I5SDSDQLPSEIQ/
https://security.gentoo.org/glsa/202008-04
https://security.netapp.com/advisory/ntap-20200827-0002/
https://www.oracle.com/security-alerts/cpujan2021.html
1866559 https://bugzilla.redhat.com/show_bug.cgi?id=1866559
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:*:*:*:*:*:*:*:*
CVE-2020-11985 https://httpd.apache.org/security/json/CVE-2020-11985.json
CVE-2020-11985 https://nvd.nist.gov/vuln/detail/CVE-2020-11985
RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1161
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2020-11985.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: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:M/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2020-11985
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-2020-11985
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 0.96985
EPSS Score 0.36323
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:07.775472+00:00 Apache HTTPD Importer Import https://httpd.apache.org/security/json/CVE-2020-11985.json 37.0.0