In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to free certain invalid encodings. Only CHOICE structures using a callback which do not handle NULL value are affected.
CVE-2016-7053
HIGHNVD 7.57.5—Elevated
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-17. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 22%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 97.3%
- KEV
- Not listed
Published
May 4, 2017
Last Modified
May 13, 2026
References (8)
- openssl-security@opensslhttp://www.securityfocus.com/bid/94244
- openssl-security@opensslhttp://www.securitytracker.com/id/1037261
- openssl-security@opensslhttps://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
- openssl-security@opensslhttps://www.openssl.org/news/secadv/20161110.txt
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94244
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1037261
- af854a3a-2127-422b-91ae-364da2661108https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
- af854a3a-2127-422b-91ae-364da2661108https://www.openssl.org/news/secadv/20161110.txt
Data Freshness Timeline
(refreshed 7× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 16:24 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2016-7053?
CVE-2016-7053 is a high vulnerability published on May 4, 2017. In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to…
When was CVE-2016-7053 disclosed?
CVE-2016-7053 was first published in the National Vulnerability Database on May 4, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-7053 actively exploited?
CVE-2016-7053 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-7053?
CVE-2016-7053 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2016-7053?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7053, 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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