The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.
CVE-2016-7798
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 3.2%, top 13% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 40(Track)EG Risk 40/100SSVC: 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 computedSeverity75% × 45%Exploitation3% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 3%
- EPSS %ILE
- 87%
- KEV
- Not listed
Published
January 30, 2017
Last Modified
June 17, 2026
References (16)
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/09/19/9
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/09/30/6
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/10/01/2
- cve@mitrehttp://www.securityfocus.com/bid/93031
- cve@mitrehttps://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
- cve@mitrehttps://github.com/ruby/openssl/issues/49
- cve@mitrehttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- cve@mitrehttps://www.debian.org/security/2017/dsa-3966
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/09/19/9
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/09/30/6
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/10/01/2
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/93031
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ruby/openssl/commit/8108e0a6db133f3375608303fdd2083eb5115062
- af854a3a-2127-422b-91ae-364da2661108https://github.com/ruby/openssl/issues/49
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | ruby2.3 (2.3.3-1ubuntu0.1) @ zesty | 2026-05-22 | ubuntu |
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
(11 across 7 ecosystems)
Debian:11(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby-attr-encrypted | — | 3.0.1-2 | — |
| ruby-encryptor | — | 3.0.0-1 | — |
Debian:12(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby-attr-encrypted | — | 3.0.1-2 | — |
| ruby-encryptor | — | 3.0.0-1 | — |
Debian:13(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby-attr-encrypted | — | 3.0.1-2 | — |
| ruby-encryptor | — | 3.0.0-1 | — |
Debian:14(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby-attr-encrypted | — | 3.0.1-2 | — |
| ruby-encryptor | — | 3.0.0-1 | — |
Debian:8(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby2.1 | 2.1.5-2, 2.1.5-2+deb8u1, 2.1.5-2+deb8u2, 2.1.5-2+deb8u3 | 2.1.5-2+deb8u4 | — |
Debian:9(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| ruby2.3 | 2.3.3-1 | 2.3.3-1+deb9u1 | — |
RubyGems(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| openssl | 2.0.0.beta.1, 2.0.0.beta.2 | 2.0.0 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 7× in last 7d / 21× 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 144 total refreshes for this CVE.
- 2026-09-18 19:22 UTCEPSS rescore
- 2026-09-18 16:50 UTCOSV refresh
- 2026-09-17 19:22 UTCEPSS rescore
- 2026-09-16 05:05 UTCEPSS rescore
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- 2026-08-30 20:37 UTCOSV refresh
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- 2026-08-16 02:10 UTCEPSS rescore
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- 2026-08-14 06:59 UTCOSV refresh
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- 2026-07-28 15:31 UTCEPSS rescore
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- 2026-07-23 01:24 UTCEG score recompute
- 2026-07-22 22:03 UTCEG score recompute
- 2026-07-22 14:04 UTCEPSS rescore
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- 2026-07-12 04:11 UTCOSV refresh
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu
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- CVE-2004-0981EG 10.0EPSS p93HIGH
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- CVE-2004-1018EG 10.0EPSS p97HIGH
Same CWE
10 shownCWE-326
- CVE-2013-7287EG 9.8CRITICAL
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- CVE-2017-1000486EG 9.8 KEVEPSS p100CRITICAL
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Frequently asked(5)
What is CVE-2016-7798?
When was CVE-2016-7798 disclosed?
Is CVE-2016-7798 actively exploited?
What is the CVSS score of CVE-2016-7798?
How do I remediate CVE-2016-7798?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-7798
Is Your Infrastructure Affected by CVE-2016-7798?
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