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Vulnerability details: VCID-46bw-8rjq-h7a2
Vulnerability ID VCID-46bw-8rjq-h7a2
Aliases CVE-2011-4968
Summary nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)
Status Published
Exploitability 0.5
Weighted Severity 5.2
Risk 2.6
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-20 Improper Input Validation
System Score Found at
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
epss 0.00621 https://api.first.org/data/v1/epss?cve=CVE-2011-4968
cvssv2 5.8 https://nvd.nist.gov/vuln/detail/CVE-2011-4968
cvssv3.1 4.8 https://nvd.nist.gov/vuln/detail/CVE-2011-4968
Reference id Reference type URL
https://access.redhat.com/security/cve/cve-2011-4968
https://api.first.org/data/v1/epss?cve=CVE-2011-4968
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4968
https://bugzilla.suse.com/show_bug.cgi?id=CVE-2011-4968
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4968
https://exchange.xforce.ibmcloud.com/vulnerabilities/80952
https://security-tracker.debian.org/tracker/CVE-2011-4968
http://www.openwall.com/lists/oss-security/2013/01/03/8
http://www.securityfocus.com/bid/57139
697940 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697940
cpe:2.3:a:f5:nginx:0.7.61:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.7.61:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.7.62:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.7.62:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.7.64:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.7.64:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.7.65:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.7.65:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.7.66:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.7.66:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.8.33:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.8.33:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.8.35:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.8.35:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.8.36:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.8.36:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:0.8.40:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:0.8.40:*:*:*:*:*:*:*
cpe:2.3:a:f5:nginx:1.2.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:f5:nginx:1.2.6:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
CVE-2011-4968 https://nvd.nist.gov/vuln/detail/CVE-2011-4968
No exploits are available.
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2011-4968
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:H/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2011-4968
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 0.69131
EPSS Score 0.00621
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T11:44:07.825453+00:00 EPSS Importer Import https://epss.cyentia.com/epss_scores-current.csv.gz 37.0.0