CVE-2019-11577

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-24. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 53%
CISA-KEV: Not listedEPSS PROB: 53%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
70
EG Risk 70/100CISA 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
Severity98% × 45%
Exploitation53% × 40%
Automatability30% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
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
53%
EPSS %ILE
98th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

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

Exploitation public PoC (EG-KEV: elevated) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 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

April 28, 2019

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Oct 5, 2026
Patch available.
generic

CVE-2019-11577 - PSIRT.COM

http://www.securityfocus.com/bid/108090

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
dhcpcd5—
  • every version up to 7.1.0-2: fixed in 7.1.0-2
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
dhcpcd5—
  • every version up to 7.1.0-2: fixed in 7.1.0-2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 17× 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 132 total refreshes for this CVE.

  1. 2026-10-03 14:21 UTCEPSS rescore
  2. 2026-09-30 14:59 UTCEPSS rescore
  3. 2026-09-30 10:09 UTCEG score recompute
  4. 2026-09-28 07:32 UTCOSV refresh
  5. 2026-09-26 15:53 UTCEPSS rescore
  6. 2026-09-24 13:59 UTCEPSS rescore
  7. 2026-09-23 13:43 UTCEPSS rescore
  8. 2026-09-21 20:27 UTCEPSS rescore
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  11. 2026-09-16 14:04 UTCEPSS rescore
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  14. 2026-09-12 14:56 UTCEPSS rescore
  15. 2026-09-08 21:55 UTCEPSS rescore
  16. 2026-09-08 11:58 UTCOSV refresh
  17. 2026-09-06 13:44 UTCEPSS rescore
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  19. 2026-09-04 13:56 UTCEPSS rescore
  20. 2026-09-02 14:07 UTCEPSS rescore
  21. 2026-08-30 19:13 UTCEPSS rescore
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  23. 2026-08-28 21:36 UTCEPSS rescore
  24. 2026-08-27 14:21 UTCEPSS rescore
  25. 2026-08-26 14:42 UTCEPSS rescore
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  1. 2026-08-25 13:45 UTCEPSS rescore
  2. 2026-08-21 23:45 UTCEPSS rescore
  3. 2026-08-21 22:44 UTCOSV refresh
  4. 2026-08-20 22:51 UTCEPSS rescore
  5. 2026-08-19 17:00 UTCEPSS rescore
  6. 2026-08-18 13:44 UTCEPSS rescore
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  8. 2026-08-16 14:52 UTCEPSS rescore
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  11. 2026-08-13 21:56 UTCEPSS rescore
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  14. 2026-08-08 16:33 UTCEPSS rescore
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  17. 2026-08-06 04:51 UTCOSV refresh
  18. 2026-08-04 10:33 UTCEPSS rescore
  19. 2026-07-30 16:24 UTCEPSS rescore
  20. 2026-07-30 01:27 UTCEPSS rescore
  21. 2026-07-28 15:32 UTCEPSS rescore
  22. 2026-07-26 14:51 UTCEPSS rescore
  23. 2026-07-25 14:14 UTCEPSS rescore
  24. 2026-07-24 14:14 UTCEPSS rescore
  25. 2026-07-24 14:14 UTCEPSS rescore
  26. 2026-07-23 14:15 UTCEPSS rescore
  27. 2026-07-23 01:39 UTCEG score recompute
  28. 2026-07-22 22:19 UTCEG score recompute
  29. 2026-07-22 14:05 UTCEPSS rescore
  30. 2026-07-21 15:22 UTCEPSS rescore
  31. 2026-07-21 15:22 UTCEPSS rescore
  32. 2026-07-20 17:04 UTCEPSS rescore
  33. 2026-07-20 17:02 UTCOSV refresh
  34. 2026-07-19 02:26 UTCEPSS rescore
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  36. 2026-07-18 10:01 UTCEPSS rescore
  37. 2026-07-16 16:59 UTCEPSS rescore
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  39. 2026-07-15 16:55 UTCEPSS rescore
  40. 2026-07-13 22:27 UTCEPSS rescore
  41. 2026-07-13 06:10 UTCEPSS rescore
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  43. 2026-07-12 05:43 UTCEPSS rescore
  44. 2026-07-09 19:06 UTCEPSS rescore
  45. 2026-07-07 13:42 UTCEPSS rescore
  46. 2026-07-04 06:28 UTCEPSS rescore
  47. 2026-07-04 06:28 UTCEPSS rescore
  48. 2026-07-03 12:26 UTCOSV refresh
  49. 2026-07-02 16:56 UTCEPSS rescore
  50. 2026-07-01 15:03 UTCEPSS rescore
  51. 2026-07-01 15:03 UTCEPSS rescore
  52. 2026-06-30 23:20 UTCEPSS rescore
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  54. 2026-06-28 14:04 UTCEPSS rescore
  55. 2026-06-28 04:54 UTCEPSS rescore
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  57. 2026-06-27 03:06 UTCEPSS rescore
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  59. 2026-06-25 13:47 UTCEPSS rescore
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  63. 2026-06-23 21:30 UTCEPSS rescore
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  65. 2026-06-22 14:23 UTCEPSS rescore
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  67. 2026-06-21 01:57 UTCEPSS rescore
  68. 2026-06-21 01:57 UTCEPSS rescore
  69. 2026-06-18 17:50 UTCEPSS rescore
  70. 2026-06-17 17:50 UTCEPSS rescore
  71. 2026-06-16 17:50 UTCEPSS rescore
  72. 2026-06-15 17:45 UTCEPSS rescore
  73. 2026-06-15 02:43 UTCOSV refresh
  74. 2026-06-14 23:15 UTCEPSS rescore
  75. 2026-06-14 23:15 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2019-11577?
CVE-2019-11577 is a critical vulnerability published on April 28, 2019. dhcpcd before 7.2.1 contains a buffer overflow in dhcp6_findna in dhcp6.c when reading NA/TA addresses.
When was CVE-2019-11577 disclosed?
CVE-2019-11577 was first published on April 28, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-11577 actively exploited?
CVE-2019-11577 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 53% probability of exploitation in the next 30 days (98th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-11577?
CVE-2019-11577 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2019-11577?
A fix for CVE-2019-11577 is available: update to the fixed version the vendor names in its advisory.

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