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Vulnerability details: VCID-xyyk-8f6r-vyct
Vulnerability ID VCID-xyyk-8f6r-vyct
Aliases CVE-2016-2161
Summary Malicious input to mod_auth_digest will cause the server to crash, and each instance continues to crash even for subsequently valid requests.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
cvssv3 7.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.json
epss 0.13719 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.13719 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.13719 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
epss 0.42527 https://api.first.org/data/v1/epss?cve=CVE-2016-2161
cvssv2 4.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
apache_httpd low https://httpd.apache.org/security/json/CVE-2016-2161.json
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.json
https://api.first.org/data/v1/epss?cve=CVE-2016-2161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0736
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2161
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8743
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1406753 https://bugzilla.redhat.com/show_bug.cgi?id=1406753
CVE-2016-2161 https://httpd.apache.org/security/json/CVE-2016-2161.json
RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:0906
RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1161
RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1413
RHSA-2017:1414 https://access.redhat.com/errata/RHSA-2017:1414
RHSA-2017:1415 https://access.redhat.com/errata/RHSA-2017:1415
USN-3279-1 https://usn.ubuntu.com/3279-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-2161.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:M/Au:N/C:N/I:N/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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
Exploit Prediction Scoring System (EPSS)
Percentile 0.9402
EPSS Score 0.13719
Published At Aug. 1, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:29:01.118295+00:00 Apache HTTPD Importer Import https://httpd.apache.org/security/json/CVE-2016-2161.json 37.0.0