CVE-2016-2177

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 45%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to s3_srvr.c, ssl_sess.c, and t1_lib.c.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
66(Track*)
EG Risk 66/100SSVC: 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
Severity98% × 45%
Exploitation45% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
98.6%
KEV
Not listed

Published

June 20, 2016

Last Modified

May 6, 2026

Advisory Details (1)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

CEC Juniper Community

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

Vendor Advisories for CVE-2016-2177(1)

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

Patch Availability(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuopenssl (1.0.1f-1ubuntu2.22) @ trusty2026-05-20ubuntu
ubuntuopenssl (1.0.2g-1ubuntu4.4) @ xenial2026-05-20ubuntu
redhatopenssl2017-06-28redhat
redhatjbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el72017-06-28redhat
redhatjbcs-httpd24-openssl-1:1.0.2h-12.jbcs.el62017-01-25redhat
redhatjbcs-httpd24-openssl-1:1.0.2h-12.jbcs.el72017-01-25redhat
redhatpatch2016-12-15redhat
redhatopenssl-1:1.0.1e-51.el7_2.72016-09-27redhat

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.

Additional Vendor Advisories

(7)

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 13× in last 7d / 29× 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.

  1. 2026-07-23 01:22 UTCEG score recompute
  2. 2026-07-22 22:01 UTCEG score recompute
  3. 2026-07-22 14:04 UTCEPSS rescore
  4. 2026-07-21 15:21 UTCEPSS rescore
  5. 2026-07-21 15:21 UTCEPSS rescore
  6. 2026-07-20 17:03 UTCEPSS rescore
  7. 2026-07-19 14:27 UTCEPSS rescore
  8. 2026-07-19 02:26 UTCEPSS rescore
  9. 2026-07-19 02:26 UTCEPSS rescore
  10. 2026-07-18 10:00 UTCEPSS rescore
  11. 2026-07-18 10:00 UTCEPSS rescore
  12. 2026-07-16 16:59 UTCEPSS rescore
  13. 2026-07-16 16:59 UTCEPSS rescore
  14. 2026-07-15 16:54 UTCEPSS rescore
  15. 2026-07-15 16:54 UTCEPSS rescore
  16. 2026-07-13 22:26 UTCEPSS rescore
  17. 2026-07-13 06:09 UTCEPSS rescore
  18. 2026-07-12 05:43 UTCEPSS rescore
  19. 2026-07-12 05:43 UTCEPSS rescore
  20. 2026-07-11 08:23 UTCEPSS rescore
  21. 2026-07-09 19:05 UTCEPSS rescore
  22. 2026-07-08 15:10 UTCEPSS rescore
  23. 2026-07-07 20:42 UTCOSV refresh
  24. 2026-07-04 06:28 UTCEPSS rescore
  25. 2026-07-01 15:02 UTCEPSS rescore
Show 69 more
  1. 2026-06-28 04:53 UTCEPSS rescore
  2. 2026-06-25 13:47 UTCEPSS rescore
  3. 2026-06-25 13:47 UTCEPSS rescore
  4. 2026-06-23 21:30 UTCEPSS rescore
  5. 2026-06-21 01:57 UTCEPSS rescore
  6. 2026-06-21 01:57 UTCEPSS rescore
  7. 2026-06-19 08:25 UTCOSV refresh
  8. 2026-06-18 17:50 UTCEPSS rescore
  9. 2026-06-17 17:50 UTCEPSS rescore
  10. 2026-06-17 17:50 UTCEPSS rescore
  11. 2026-06-16 17:50 UTCEPSS rescore
  12. 2026-06-16 17:50 UTCEPSS rescore
  13. 2026-06-15 17:45 UTCEPSS rescore
  14. 2026-06-14 23:14 UTCEPSS rescore
  15. 2026-06-13 22:57 UTCEPSS rescore
  16. 2026-06-13 22:57 UTCEPSS rescore
  17. 2026-06-12 23:09 UTCEPSS rescore
  18. 2026-06-12 23:09 UTCEPSS rescore
  19. 2026-06-11 13:57 UTCEPSS rescore
  20. 2026-06-10 22:15 UTCEPSS rescore
  21. 2026-06-10 13:18 UTCEPSS rescore
  22. 2026-06-06 13:45 UTCEPSS rescore
  23. 2026-06-05 22:44 UTCEPSS rescore
  24. 2026-06-05 06:08 UTCEPSS rescore
  25. 2026-06-05 06:08 UTCEPSS rescore
  26. 2026-06-04 13:10 UTCEPSS rescore
  27. 2026-06-04 13:10 UTCEPSS rescore
  28. 2026-06-02 20:10 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-06-01 13:49 UTCEPSS rescore
  31. 2026-05-31 00:14 UTCEPSS rescore
  32. 2026-05-30 18:23 UTCOSV refresh
  33. 2026-05-29 13:41 UTCEPSS rescore
  34. 2026-05-28 13:42 UTCEPSS rescore
  35. 2026-05-28 13:42 UTCEPSS rescore
  36. 2026-05-27 13:38 UTCEPSS rescore
  37. 2026-05-27 13:38 UTCEPSS rescore
  38. 2026-05-26 13:42 UTCEPSS rescore
  39. 2026-05-24 16:43 UTCEPSS rescore
  40. 2026-05-22 21:15 UTCEPSS rescore
  41. 2026-05-22 21:15 UTCEPSS rescore
  42. 2026-05-21 22:40 UTCEPSS rescore
  43. 2026-05-20 22:37 UTCEPSS rescore
  44. 2026-05-20 22:37 UTCEPSS rescore
  45. 2026-05-20 22:37 UTCEPSS rescore
  46. 2026-05-20 11:21 UTCEPSS rescore
  47. 2026-05-20 11:21 UTCEPSS rescore
  48. 2026-05-20 11:21 UTCEPSS rescore
  49. 2026-05-20 07:40 UTCVendor advisory
  50. 2026-05-20 07:40 UTCGHSA enrichment
  51. 2026-05-20 03:50 UTCVendor advisory
  52. 2026-05-20 03:50 UTCGHSA enrichment
  53. 2026-05-20 00:00 UTCVendor advisory
  54. 2026-05-20 00:00 UTCGHSA enrichment
  55. 2026-05-19 20:08 UTCVendor advisory
  56. 2026-05-19 20:08 UTCGHSA enrichment
  57. 2026-05-19 16:18 UTCVendor advisory
  58. 2026-05-19 16:18 UTCGHSA enrichment
  59. 2026-05-19 12:24 UTCVendor advisory
  60. 2026-05-19 12:24 UTCGHSA enrichment
  61. 2026-05-19 08:19 UTCVendor advisory
  62. 2026-05-19 08:19 UTCGHSA enrichment
  63. 2026-05-19 04:29 UTCVendor advisory
  64. 2026-05-19 04:29 UTCGHSA enrichment
  65. 2026-05-19 00:39 UTCEG score recompute
  66. 2026-05-19 00:39 UTCVendor advisory
  67. 2026-05-19 00:39 UTCGHSA enrichment
  68. 2026-05-18 21:30 UTCEPSS rescore
  69. 2026-05-18 21:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2016-2177?
CVE-2016-2177 is a critical vulnerability published on June 20, 2016. OpenSSL through 1.0.2h incorrectly uses pointer arithmetic for heap-buffer boundary checks, which might allow remote attackers to cause a denial of service (integer overflow and application crash) or possibly have unspecified other impact by leveraging unexpected malloc behavior, related to…
When was CVE-2016-2177 disclosed?
CVE-2016-2177 was first published in the National Vulnerability Database on June 20, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-2177 actively exploited?
CVE-2016-2177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-2177?
CVE-2016-2177 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2016-2177?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-2177, 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

Explore the affected products and dependency analysis for CVE-2016-2177

Explore →

Is Your Infrastructure Affected by CVE-2016-2177?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs