A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail to accept connections from other clients.
CVE-2016-8610
Score elevated to 7.8 because EPSS predicts 40% probability of exploitation within the next 30 days (top 1.5% of all CVEs). NVD baseline CVSS 7.5 retained for reference. Confidence: see factors.
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.8(high)
- EG Risk
- 56(Track)EG Risk 56/100SSVC: 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 computedSeverity78% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 40%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
November 13, 2017
Last Modified
June 17, 2026
References (56)
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-0286.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-0574.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-1415.html
- secalert@redhathttp://rhn.redhat.com/errata/RHSA-2017-1659.html
- secalert@redhathttp://seclists.org/oss-sec/2016/q4/224
- secalert@redhathttp://www.securityfocus.com/bid/93841
- secalert@redhathttp://www.securitytracker.com/id/1037084
- 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-2017:1658
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1801
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:1802
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:2493
- secalert@redhathttps://access.redhat.com/errata/RHSA-2017:2494
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8610
Vendor Advisories for CVE-2016-8610(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(12)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | openssl (1.0.2g-1ubuntu4.6) @ xenial | 2026-05-22 | ubuntu |
| ubuntu | libgnutls30 (3.5.3-5ubuntu1.1) @ yakkety | 2026-05-22 | ubuntu |
| ubuntu | libgnutlsxx27 (2.12.23-12ubuntu2.7) @ trusty | 2026-05-22 | ubuntu |
| redhat | openssl | 2017-08-21 | redhat |
| redhat | tomcat7-0:7.0.54-25_patch_05.ep6.el7 | 2017-08-21 | redhat |
| redhat | tomcat-native-0:1.2.8-10.redhat_10.ep7.el7 | 2017-07-25 | redhat |
| redhat | patch | 2017-07-25 | redhat |
| redhat | jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el7 | 2017-06-28 | redhat |
| redhat | patch | 2017-06-07 | redhat |
| redhat | jbcs-httpd24-openssl-1:1.0.2h-13.jbcs.el6 | 2017-06-07 | redhat |
| redhat | gnutls-0:2.12.23-21.el6 | 2017-03-21 | redhat |
| redhat | openssl-1:1.0.1e-60.el7_3.1 | 2017-02-20 | 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.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(9)
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.
- Red HatRHSA-2017:0286MODERATE2016-10-24
RHSA-2017:0286 — Moderate
- Red HatRHSA-2017:0574MODERATE2016-10-24
RHSA-2017:0574 — Moderate
- Red HatRHSA-2017:1658MODERATE2016-10-24
RHSA-2017:1658 — Moderate
- Red HatRHSA-2017:1659MODERATE2016-10-24
RHSA-2017:1659 — Moderate
- Red HatRHSA-2017:2493MODERATE2016-10-24
RHSA-2017:2493 — Moderate
- Red HatRHSA-2017:2494MODERATE2016-10-24
RHSA-2017:2494 — Moderate
- UbuntuUSN-3181-1LOW
OpenSSL vulnerabilities
- UbuntuUSN-3183-1LOW
GnuTLS vulnerabilities
- UbuntuUSN-3183-2LOW
GnuTLS vulnerability
Data Freshness Timeline
(refreshed 10× in last 7d / 34× 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.
- 2026-07-26 14:50 UTCEPSS rescore
- 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▲ 0.30
- 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
- 2026-07-20 17:04 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-19 02:26 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-18 10:00 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-16 16:59 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:56 UTCEPSS rescore
- 2026-07-13 22:26 UTCEPSS rescore
- 2026-07-13 06:09 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-12 05:43 UTCEPSS rescore
- 2026-07-11 15:11 UTCOSV refresh
- 2026-07-11 08:24 UTCEPSS rescore
Show 59 moreShow fewer
- 2026-07-09 19:06 UTCEPSS rescore
- 2026-07-08 15:10 UTCEPSS rescore
- 2026-07-04 06:28 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 2026-06-30 23:19 UTCEPSS rescore
- 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
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-22 21:35 UTCOSV refresh
- 2026-06-22 14:23 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-21 01:57 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-18 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-17 17:50 UTCEPSS rescore
- 2026-06-16 17:50 UTCEPSS rescore
- 2026-06-15 17:45 UTCEPSS rescore
- 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
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-06 13:45 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 13:27 UTCOSV refresh
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 00:14 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-27 13:38 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 08:07 UTCEG score recompute
- 2026-05-22 08:07 UTCVendor advisory
- 2026-05-22 08:07 UTCGHSA enrichment
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
- 2026-05-18 21:30 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCcujanovic/CVE-2016-8610-PoCFirst seen Dec 27, 2016
CVE-2016-8610 (SSL Death Alert) PoC
Open source ↗
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
- CVE-2001-0825EG 10.0HIGH
- CVE-2001-1009EG 10.0EPSS p93HIGH
- CVE-2001-0554EG 10.0EPSS p98HIGH
- CVE-2001-1162EG 10.0EPSS p96HIGH
- CVE-2001-0414EG 10.0EPSS p100HIGH
- CVE-2001-0191EG 10.0EPSS p92HIGH
- CVE-2001-0301EG 10.0EPSS p90HIGH
- CVE-2001-0197EG 10.0EPSS p96HIGH
- CVE-2001-0233EG 10.0EPSS p96HIGH
- CVE-2001-0010EG 10.0EPSS p98HIGH
Same CWE
10 shownCWE-400
Frequently asked(5)
What is CVE-2016-8610?
When was CVE-2016-8610 disclosed?
Is CVE-2016-8610 actively exploited?
What is the CVSS score of CVE-2016-8610?
How do I remediate CVE-2016-8610?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2016-8610
Is Your Infrastructure Affected by CVE-2016-8610?
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