CVE-2016-8645

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-14. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

The TCP stack in the Linux kernel before 4.8.10 mishandles skb truncation, which allows local users to cause a denial of service (system crash) via a crafted application that makes sendto system calls, related to net/ipv4/tcp_ipv4.c and net/ipv6/tcp_ipv6.c.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

November 28, 2016

Last Modified

June 17, 2026

References (22)

Vendor Advisories for CVE-2016-8645(3)

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

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-4.4.0-1042-snapdragon (4.4.0-1042.46) @ xenial2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-57-generic (4.4.0-57.78) @ xenial2026-05-22ubuntu
ubuntulinux-image-4.4.0-1038-raspi2 (4.4.0-1038.45) @ xenial2026-05-22ubuntu
ubuntulinux-image-extra-4.4.0-57-generic (4.4.0-57.78~14.04.1) @ trusty2026-05-22ubuntu
ubuntulinux-image-extra-3.13.0-119-generic (3.13.0-119.166) @ trusty2026-05-22ubuntu
ubuntulinux-image-4.8.0-32-lowlatency (4.8.0-32.34) @ yakkety2026-05-22ubuntu
ubuntulinux-image-raspi2 (4.8.0.1021.24) @ yakkety2026-05-22ubuntu
redhatkernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt2017-09-06redhat
redhatkernel-0:3.10.0-693.el72017-08-01redhat
redhatkernel-rt-0:3.10.0-693.rt56.617.el72017-08-01redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux—4.8.11-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—4.8.11-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—4.8.11-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—4.8.11-1—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
linux3.2.41-2 ... 3.2.82-1 (61 versions)3.2.84-1—

Weakness Classification(1)

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

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 6× in last 7d / 28× 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 126 total refreshes for this CVE.

  1. 2026-08-19 16:59 UTCEPSS rescore
  2. 2026-08-18 13:43 UTCEPSS rescore
  3. 2026-08-17 13:42 UTCEPSS rescore
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  7. 2026-08-14 08:46 UTCOSV refresh
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  21. 2026-07-29 17:07 UTCOSV refresh
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  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:24 UTCEG score recompute
  3. 2026-07-22 22:03 UTCEG score recompute
  4. 2026-07-22 14:04 UTCEPSS rescore
  5. 2026-07-21 15:21 UTCEPSS rescore
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  8. 2026-07-19 14:28 UTCEPSS rescore
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  18. 2026-07-15 01:56 UTCEPSS rescore
  19. 2026-07-13 22:26 UTCEPSS rescore
  20. 2026-07-13 06:09 UTCEPSS rescore
  21. 2026-07-12 06:07 UTCOSV refresh
  22. 2026-07-12 05:43 UTCEPSS rescore
  23. 2026-07-12 05:43 UTCEPSS rescore
  24. 2026-07-11 08:24 UTCEPSS rescore
  25. 2026-07-09 19:06 UTCEPSS rescore
  26. 2026-07-08 15:10 UTCEPSS rescore
  27. 2026-07-07 13:42 UTCEPSS rescore
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  43. 2026-06-23 21:30 UTCEPSS rescore
  44. 2026-06-23 12:00 UTCOSV refresh
  45. 2026-06-22 14:23 UTCEPSS rescore
  46. 2026-06-21 14:54 UTCEPSS rescore
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  48. 2026-06-21 01:57 UTCEPSS rescore
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  50. 2026-06-19 19:23 UTCEPSS rescore
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  63. 2026-06-11 13:57 UTCEPSS rescore
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  65. 2026-06-07 15:22 UTCEPSS rescore
  66. 2026-06-07 15:22 UTCEPSS rescore
  67. 2026-06-06 14:14 UTCOSV refresh
  68. 2026-06-06 13:45 UTCEPSS rescore
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  70. 2026-06-05 22:44 UTCEPSS rescore
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  73. 2026-06-04 13:10 UTCEPSS rescore
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  75. 2026-06-02 20:10 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2016-8645?
CVE-2016-8645 is a medium vulnerability published on November 28, 2016. The TCP stack in the Linux kernel before 4.8.10 mishandles skb truncation, which allows local users to cause a denial of service (system crash) via a crafted application that makes sendto system calls, related to net/ipv4/tcpipv4.c and net/ipv6/tcpipv6.c.
When was CVE-2016-8645 disclosed?
CVE-2016-8645 was first published in the National Vulnerability Database on November 28, 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-2016-8645 actively exploited?
CVE-2016-8645 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 61.4% of all scored CVEs.
What is the CVSS score of CVE-2016-8645?
CVE-2016-8645 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2016-8645?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-8645, 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

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