A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.
CVE-2016-7056
Score 5.5 from GitHub Security Advisory published 2022-05-13. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 29(Track)EG Risk 29/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 46%
- KEV
- Not listed
Published
September 10, 2018
Last Modified
November 21, 2024
References (32)
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-1415.html
- secalert@redhathttp://www.securityfocus.com/bid/95375
- secalert@redhathttp://www.securitytracker.com/id/1037575
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1413
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1414
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1801
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1802
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056
- secalert@redhathttps://eprint.iacr.org/2016/1195
- secalert@redhathttps://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig
- secalert@redhathttps://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig
- secalert@redhathttps://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008
- secalert@redhathttps://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html
- secalert@redhathttps://seclists.org/oss-sec/2017/q1/52
- secalert@redhathttps://security-tracker.debian.org/tracker/CVE-2016-7056
Vendor Advisories for CVE-2016-7056(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2017:1802Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Web Server Service Pack 1 security update
- RHSA-2017:1801Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Web Server 3.1.0 Service Pack 1 security update
- RHSA-2017:1413Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1 for RHEL 7
- RHSA-2017:1414Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1 for RHEL 6
- RHSA-2017:1415Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.23 Service Pack 1
Patch Availability(7)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libssl1.0.0 (1.0.1-4ubuntu5.39) @ precise | 2026-05-28 | ubuntu |
| redhat | openssl-1:1.0.2k-8.el7 | 2017-08-01 | redhat |
| redhat | patch | 2017-07-25 | redhat |
| redhat | tomcat-native-0:1.2.8-10.redhat_10.ep7.el7 | 2017-07-25 | redhat |
| redhat | jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el7 | 2017-06-07 | redhat |
| redhat | patch | 2017-06-07 | redhat |
| redhat | jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el6 | 2017-06-07 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(6 across 6 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 1.0.2a-1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 1.0.2a-1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 1.0.2a-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | — | 1.0.2a-1 | — |
Debian:7(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | 1.0.1e-2 ... 1.0.1t-1+deb7u1 (45 versions) | 1.0.1t-1+deb7u2 | — |
Debian:8(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | 1.0.1k-3 ... 1.0.1t-1+deb8u5 (12 versions) | 1.0.1t-1+deb8u6 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(2)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 4× in last 7d / 20× 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.
Showing the most recent 100 of 128 total refreshes for this CVE.
- 2026-09-07 15:56 UTCEPSS rescore
- 2026-09-04 13:56 UTCEPSS rescore
- 2026-09-02 14:07 UTCEPSS rescore
- 2026-09-01 13:48 UTCEPSS rescore
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- 2026-08-22 10:07 UTCOSV refresh
- 2026-08-21 23:44 UTCEPSS rescore
- 2026-08-19 16:59 UTCEPSS rescore
- 2026-08-18 13:43 UTCEPSS rescore
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- 2026-08-07 16:22 UTCEPSS rescore
- 2026-08-06 13:42 UTCEPSS rescore
- 2026-08-06 12:45 UTCOSV refresh
- 2026-08-05 19:12 UTCEPSS rescore
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- 2026-08-04 15:05 UTCEPSS rescore
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- 2026-07-28 15:31 UTCEPSS rescore
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- 2026-07-25 14:13 UTCEPSS rescore
- 2026-07-24 14:13 UTCEPSS rescore
- 2026-07-23 14:15 UTCEPSS rescore
- 2026-07-23 01:24 UTCEG score recompute
- 2026-07-22 22:03 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 15:21 UTCEPSS rescore
- 2026-07-21 05:48 UTCOSV refresh
- 2026-07-20 17:04 UTCEPSS rescore
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- 2026-07-16 16:59 UTCEPSS rescore
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- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-04 01:26 UTCOSV refresh
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
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- 2026-06-29 14:03 UTCEPSS rescore
- 2026-06-28 14:04 UTCEPSS rescore
- 2026-06-28 04:53 UTCEPSS rescore
- 2026-06-27 03:05 UTCEPSS rescore
- 2026-06-25 13:47 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 14:54 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-19 19:23 UTCEPSS rescore
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- 2026-06-15 17:45 UTCEPSS rescore
- 2026-06-15 13:13 UTCOSV refresh
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-14 23:14 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:09 UTCEPSS rescore
- 2026-06-11 13:57 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
Frequently asked(5)
What is CVE-2016-7056?
When was CVE-2016-7056 disclosed?
Is CVE-2016-7056 actively exploited?
What is the CVSS score of CVE-2016-7056?
How do I remediate CVE-2016-7056?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-7056
Is Your Infrastructure Affected by CVE-2016-7056?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.