CVE-2016-0704

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 5.9Exploit: None knownExposed: 0

A fix is available — apply it.

An oracle protection mechanism in the get_client_master_key function in s2_srvr.c in the SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a overwrites incorrect MASTER-KEY bytes during use of export cipher suites, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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 computed
Severity59% × 45%
Exploitation7% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

March 2, 2016

Last Modified

June 17, 2026

References (58)

Vendor Advisories for CVE-2016-0704(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenssl098e-0:0.9.8e-29.el7_2.32016-03-09redhat
redhatopenssl-0:0.9.7a-43.23.el42016-03-01redhat
redhatopenssl-0:1.0.1e-16.el6_5.162016-03-01redhat
redhatopenssl-0:0.9.8e-26.el5_9.52016-03-01redhat
redhatopenssl-0:0.9.8e-33.el5_112015-04-13redhat
redhatopenssl-0:1.0.1e-30.el6_6.72015-03-30redhat
redhatopenssl-1:1.0.1e-42.ael7b_1.42015-03-23redhat

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
openssl—1.0.0c-2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
openssl—1.0.0c-2—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
openssl—1.0.0c-2—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
openssl—1.0.0c-2—

Weakness Classification(1)

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

Additional Vendor Advisories

(4)

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 6× in last 7d / 26× 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 122 total refreshes for this CVE.

  1. 2026-08-20 22:50 UTCEPSS rescore
  2. 2026-08-19 16:59 UTCEPSS rescore
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  25. 2026-07-23 01:20 UTCEG score recompute
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Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-0704?
CVE-2016-0704 is a medium vulnerability published on March 2, 2016. An oracle protection mechanism in the getclientmasterkey function in s2srvr.c in the SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a overwrites incorrect MASTER-KEY bytes during use of export cipher suites, which makes it easier for…
When was CVE-2016-0704 disclosed?
CVE-2016-0704 was first published in the National Vulnerability Database on March 2, 2016, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-0704 actively exploited?
CVE-2016-0704 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.4% of all scored CVEs.
What is the CVSS score of CVE-2016-0704?
CVE-2016-0704 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2016-0704?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-0704, 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.

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