CVE-2016-0703

MEDIUMNVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

Score 5.9 from GitHub Security Advisory published 2022-05-13. 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: 5.4%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 accepts a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher, which allows man-in-the-middle attackers to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
33
EG Risk 33/100CISA SSVC

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%
Exploitation5% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
5.4%
EPSS %ILE
92nd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

March 2, 2016

Last Modified

June 17, 2026

References (62)

Vendor Advisories for CVE-2016-0703(5)

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 / EcosystemFix (by version range) / PatchReleasedSource
redhatopenssl098e-0:0.9.8e-29.el7_2.32016-03-09redhat
redhatopenssl-0:0.9.8e-26.el5_9.52016-03-01redhat
redhatopenssl-0:1.0.1e-16.el6_5.162016-03-01redhat
redhatopenssl-0:0.9.7a-43.23.el42016-03-01redhat
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 rangeFix by version rangeDependents
openssl—
  • every version up to 1.0.0c-2: fixed in 1.0.0c-2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.0.0c-2: fixed in 1.0.0c-2
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.0.0c-2: fixed in 1.0.0c-2
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.0.0c-2: fixed in 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 5× 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 150 total refreshes for this CVE.

  1. 2026-10-05 17:38 UTCEPSS rescore
  2. 2026-10-03 14:21 UTCEPSS rescore
  3. 2026-09-30 14:58 UTCEPSS rescore
  4. 2026-09-30 14:58 UTCEPSS rescore
  5. 2026-09-30 09:09 UTCEG score recompute
  6. 2026-09-28 13:45 UTCEPSS rescore
  7. 2026-09-27 13:40 UTCEPSS rescore
  8. 2026-09-26 15:53 UTCEPSS rescore
  9. 2026-09-26 15:53 UTCEPSS rescore
  10. 2026-09-23 13:41 UTCEPSS rescore
  11. 2026-09-19 15:35 UTCEPSS rescore
  12. 2026-09-19 02:06 UTCOSV refresh
  13. 2026-09-18 19:22 UTCEPSS rescore
  14. 2026-09-17 19:21 UTCEPSS rescore
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  16. 2026-09-13 16:41 UTCEPSS rescore
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  20. 2026-09-07 15:56 UTCEPSS rescore
  21. 2026-09-06 13:42 UTCEPSS rescore
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  24. 2026-09-01 13:48 UTCEPSS rescore
  25. 2026-09-01 03:31 UTCEPSS rescore
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  1. 2026-08-31 05:49 UTCOSV refresh
  2. 2026-08-27 14:20 UTCEPSS rescore
  3. 2026-08-26 14:41 UTCEPSS rescore
  4. 2026-08-25 13:44 UTCEPSS rescore
  5. 2026-08-23 00:13 UTCEPSS rescore
  6. 2026-08-21 23:44 UTCEPSS rescore
  7. 2026-08-20 22:50 UTCEPSS rescore
  8. 2026-08-19 16:59 UTCEPSS rescore
  9. 2026-08-18 13:43 UTCEPSS rescore
  10. 2026-08-16 14:51 UTCEPSS rescore
  11. 2026-08-16 02:09 UTCEPSS rescore
  12. 2026-08-15 01:25 UTCEPSS rescore
  13. 2026-08-14 13:24 UTCOSV refresh
  14. 2026-08-12 13:46 UTCEPSS rescore
  15. 2026-08-11 13:36 UTCEPSS rescore
  16. 2026-08-09 13:42 UTCEPSS rescore
  17. 2026-08-08 16:32 UTCEPSS rescore
  18. 2026-08-07 16:22 UTCEPSS rescore
  19. 2026-08-06 13:42 UTCEPSS rescore
  20. 2026-08-05 19:12 UTCEPSS rescore
  21. 2026-08-04 15:04 UTCEPSS rescore
  22. 2026-08-04 10:31 UTCEPSS rescore
  23. 2026-08-01 04:11 UTCEPSS rescore
  24. 2026-07-30 01:54 UTCOSV refresh
  25. 2026-07-30 01:26 UTCEPSS rescore
  26. 2026-07-30 01:26 UTCEPSS rescore
  27. 2026-07-28 15:31 UTCEPSS rescore
  28. 2026-07-25 14:13 UTCEPSS rescore
  29. 2026-07-24 14:13 UTCEPSS rescore
  30. 2026-07-23 14:14 UTCEPSS rescore
  31. 2026-07-23 01:20 UTCEG score recompute
  32. 2026-07-23 00:22 UTCEG score recompute
  33. 2026-07-22 22:00 UTCEG score recompute
  34. 2026-07-22 14:04 UTCEPSS rescore
  35. 2026-07-21 15:21 UTCEPSS rescore
  36. 2026-07-21 15:21 UTCEPSS rescore
  37. 2026-07-20 17:03 UTCEPSS rescore
  38. 2026-07-19 14:27 UTCEPSS rescore
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  40. 2026-07-19 02:26 UTCEPSS rescore
  41. 2026-07-19 02:26 UTCEPSS rescore
  42. 2026-07-18 10:00 UTCEPSS rescore
  43. 2026-07-16 16:59 UTCEPSS rescore
  44. 2026-07-15 16:54 UTCEPSS rescore
  45. 2026-07-15 16:54 UTCEPSS rescore
  46. 2026-07-15 01:56 UTCEPSS rescore
  47. 2026-07-13 22:26 UTCEPSS rescore
  48. 2026-07-13 22:26 UTCEPSS rescore
  49. 2026-07-12 11:08 UTCOSV refresh
  50. 2026-07-12 05:42 UTCEPSS rescore
  51. 2026-07-11 08:23 UTCEPSS rescore
  52. 2026-07-09 19:05 UTCEPSS rescore
  53. 2026-07-09 19:05 UTCEPSS rescore
  54. 2026-07-08 15:10 UTCEPSS rescore
  55. 2026-07-07 13:42 UTCEPSS rescore
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  57. 2026-07-06 16:24 UTCEPSS rescore
  58. 2026-07-06 02:20 UTCEPSS rescore
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  62. 2026-06-30 23:19 UTCEPSS rescore
  63. 2026-06-30 23:19 UTCEPSS rescore
  64. 2026-06-28 14:04 UTCEPSS rescore
  65. 2026-06-28 04:53 UTCEPSS rescore
  66. 2026-06-27 03:05 UTCEPSS rescore
  67. 2026-06-25 13:47 UTCEPSS rescore
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  69. 2026-06-24 14:02 UTCEPSS rescore
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  71. 2026-06-23 21:30 UTCEPSS rescore
  72. 2026-06-23 16:50 UTCOSV refresh
  73. 2026-06-22 14:23 UTCEPSS rescore
  74. 2026-06-22 14:23 UTCEPSS rescore
  75. 2026-06-21 14:54 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-0703?
CVE-2016-0703 is a medium vulnerability published on March 2, 2016. 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 accepts a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher, which allows man-in-the-middle attackers to…
When was CVE-2016-0703 disclosed?
CVE-2016-0703 was first published 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-2016-0703 actively exploited?
CVE-2016-0703 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.4% probability of exploitation in the next 30 days (92nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2016-0703?
CVE-2016-0703 has a CVSS v3 base score of 5.9 (NVD).
How do I remediate CVE-2016-0703?
A fix for CVE-2016-0703 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2016-0703 are linked in the Vendor Advisories panel on this page.

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