CVE-2016-7796

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-05-17. 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: 1%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
30(Track)
EG Risk 30/100SSVC: 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%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
57%
KEV
Not listed

Published

October 13, 2016

Last Modified

June 17, 2026

References (20)

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatsystemd-0:208-20.el7_1.92017-01-03redhat
redhatsystemd-0:219-19.el72015-11-19redhat

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
systemd—231-9—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
systemd—231-9—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
systemd—231-9—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
systemd—231-9—
Debian:7(1)
PackageVulnerable rangeFixed inDependents
systemd44-11, 44-11+deb7u1, 44-11+deb7u2, 44-11+deb7u3, 44-11+deb7u444-11+deb7u5—

Weakness Classification(1)

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

All Vendor Advisories

(2)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 6× in last 7d / 23× 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 151 total refreshes for this CVE.

  1. 2026-09-24 13:59 UTCEPSS rescore
  2. 2026-09-23 13:41 UTCEPSS rescore
  3. 2026-09-20 20:09 UTCEPSS rescore
  4. 2026-09-19 15:35 UTCEPSS rescore
  5. 2026-09-18 19:22 UTCEPSS rescore
  6. 2026-09-18 19:20 UTCOSV refresh
  7. 2026-09-17 19:22 UTCEPSS rescore
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  19. 2026-09-01 03:31 UTCEPSS rescore
  20. 2026-08-30 22:17 UTCOSV refresh
  21. 2026-08-28 21:35 UTCEPSS rescore
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  24. 2026-08-25 13:44 UTCEPSS rescore
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  1. 2026-08-19 16:59 UTCEPSS rescore
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  3. 2026-08-17 13:42 UTCEPSS rescore
  4. 2026-08-16 14:51 UTCEPSS rescore
  5. 2026-08-16 02:10 UTCEPSS rescore
  6. 2026-08-15 01:25 UTCEPSS rescore
  7. 2026-08-14 08:59 UTCOSV refresh
  8. 2026-08-12 13:46 UTCEPSS rescore
  9. 2026-08-11 13:36 UTCEPSS rescore
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  21. 2026-07-29 18:07 UTCOSV refresh
  22. 2026-07-28 15:31 UTCEPSS rescore
  23. 2026-07-26 14:50 UTCEPSS rescore
  24. 2026-07-25 14:13 UTCEPSS rescore
  25. 2026-07-24 14:13 UTCEPSS rescore
  26. 2026-07-23 14:15 UTCEPSS rescore
  27. 2026-07-23 01:24 UTCEG score recompute
  28. 2026-07-22 22:03 UTCEG score recompute
  29. 2026-07-22 14:04 UTCEPSS rescore
  30. 2026-07-21 15:21 UTCEPSS rescore
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  41. 2026-07-15 16:54 UTCEPSS rescore
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  43. 2026-07-15 01:56 UTCEPSS rescore
  44. 2026-07-13 22:26 UTCEPSS rescore
  45. 2026-07-13 06:09 UTCEPSS rescore
  46. 2026-07-12 07:07 UTCOSV refresh
  47. 2026-07-12 05:43 UTCEPSS rescore
  48. 2026-07-12 05:43 UTCEPSS rescore
  49. 2026-07-11 08:24 UTCEPSS rescore
  50. 2026-07-09 19:06 UTCEPSS rescore
  51. 2026-07-08 15:10 UTCEPSS rescore
  52. 2026-07-07 13:42 UTCEPSS rescore
  53. 2026-07-06 16:24 UTCEPSS rescore
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  60. 2026-06-30 23:19 UTCEPSS rescore
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  64. 2026-06-28 04:53 UTCEPSS rescore
  65. 2026-06-27 03:05 UTCEPSS rescore
  66. 2026-06-25 13:47 UTCEPSS rescore
  67. 2026-06-24 14:02 UTCEPSS rescore
  68. 2026-06-23 21:30 UTCEPSS rescore
  69. 2026-06-23 12:58 UTCOSV refresh
  70. 2026-06-22 14:23 UTCEPSS rescore
  71. 2026-06-21 14:54 UTCEPSS rescore
  72. 2026-06-21 14:54 UTCEPSS rescore
  73. 2026-06-21 01:57 UTCEPSS rescore
  74. 2026-06-21 01:57 UTCEPSS rescore
  75. 2026-06-19 19:23 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2016-7796?
CVE-2016-7796 is a medium vulnerability published on October 13, 2016. The managerdispatchnotify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.
When was CVE-2016-7796 disclosed?
CVE-2016-7796 was first published in the National Vulnerability Database on October 13, 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-2016-7796 actively exploited?
CVE-2016-7796 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 43.5% of all scored CVEs.
What is the CVSS score of CVE-2016-7796?
CVE-2016-7796 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2016-7796?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-7796, 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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