CVE-2011-4968

MEDIUMNVD 4.84.8—

4.8

nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)

CVSS v3: 4.8
EG Score: 4.8(medium)
EPSS: 60.5%
KEV: Not listed

Published

November 19, 2019

Last Modified

November 21, 2024

References (14)

secalert@redhathttp://www.openwall.com/lists/oss-security/2013/01/03/8
secalert@redhathttp://www.securityfocus.com/bid/57139
secalert@redhathttps://access.redhat.com/security/cve/cve-2011-4968
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4968
secalert@redhathttps://bugzilla.suse.com/show_bug.cgi?id=CVE-2011-4968
secalert@redhathttps://exchange.xforce.ibmcloud.com/vulnerabilities/80952
secalert@redhathttps://security-tracker.debian.org/tracker/CVE-2011-4968
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2013/01/03/8
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/57139
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/cve-2011-4968
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4968
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=CVE-2011-4968
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/80952
af854a3a-2127-422b-91ae-364da2661108https://security-tracker.debian.org/tracker/CVE-2011-4968

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Data Freshness Timeline

(refreshed 12× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-05 22:44 UTCepss_batch
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Frequently asked(5)

What is CVE-2011-4968?

CVE-2011-4968 is a medium vulnerability published on November 19, 2019. nginx http proxy module does not verify peer identity of https origin server which could facilitate man-in-the-middle attack (MITM)

When was CVE-2011-4968 disclosed?

CVE-2011-4968 was first published in the National Vulnerability Database on November 19, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2011-4968 actively exploited?

CVE-2011-4968 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 60.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2011-4968?

CVE-2011-4968 has a CVSS v3 base score of 4.8 (NVD).

How do I remediate CVE-2011-4968?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4968, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2011-4968

📅 Published

🔄 Last Modified

🔗 References (14)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2011-4968?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (14)

Frequently asked(5)

Related CVEs(same CWE)