CVE-2019-1549

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2022-05-24. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 6.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA 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
Severity53% × 45%
Exploitation6% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
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
6.2%
EPSS %ILE
93rd
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

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

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 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

September 10, 2019

Last Modified

November 21, 2024

References (30)

Vendor Advisories for CVE-2019-1549(3)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntuopenssl (1.0.2g-1ubuntu4.16) @ xenial2026-05-27ubuntu
redhatopenssl-1:1.1.1c-15.el82020-04-28redhat
redhatopenssl2020-04-06redhat
redhatjbcs-httpd24-openssl-1:1.1.1c-16.jbcs.el72020-04-06redhat

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

(22 across 20 ecosystems)
Alpine:v3.15(2)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
openssl3—
  • every version up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.16(2)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
openssl3—
  • every version up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.10(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r0: fixed in 1.1.1d-r0
—
Alpine:v3.11(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.12(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.13(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.14(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r1: fixed in 1.1.1d-r1
—
Alpine:v3.9(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 1.1.1 up to 1.1.1d-r0: fixed in 1.1.1d-r0
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.1.1d-1: fixed in 1.1.1d-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.1.1d-1: fixed in 1.1.1d-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.1.1d-1: fixed in 1.1.1d-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • every version up to 1.1.1d-1: fixed in 1.1.1d-1
—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

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 5× in last 7d / 27× 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 161 total refreshes for this CVE.

  1. 2026-10-09 20:03 UTCEPSS rescore
  2. 2026-10-08 16:37 UTCEPSS rescore
  3. 2026-10-07 23:43 UTCEPSS rescore
  4. 2026-10-06 15:12 UTCEPSS rescore
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  7. 2026-09-30 14:59 UTCEPSS rescore
  8. 2026-09-30 10:12 UTCEG score recompute
  9. 2026-09-28 13:46 UTCEPSS rescore
  10. 2026-09-27 19:37 UTCOSV refresh
  11. 2026-09-27 13:40 UTCEPSS rescore
  12. 2026-09-26 15:54 UTCEPSS rescore
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  24. 2026-09-13 16:42 UTCEPSS rescore
  25. 2026-09-12 14:56 UTCEPSS rescore
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  1. 2026-09-11 14:48 UTCEPSS rescore
  2. 2026-09-11 09:32 UTCEPSS rescore
  3. 2026-09-08 04:22 UTCOSV refresh
  4. 2026-09-07 15:57 UTCEPSS rescore
  5. 2026-09-06 13:44 UTCEPSS rescore
  6. 2026-09-05 15:24 UTCEPSS rescore
  7. 2026-09-04 13:56 UTCEPSS rescore
  8. 2026-09-02 14:07 UTCEPSS rescore
  9. 2026-09-01 03:32 UTCEPSS rescore
  10. 2026-08-30 19:13 UTCEPSS rescore
  11. 2026-08-30 01:18 UTCEPSS rescore
  12. 2026-08-28 21:36 UTCEPSS rescore
  13. 2026-08-27 14:21 UTCEPSS rescore
  14. 2026-08-26 14:42 UTCEPSS rescore
  15. 2026-08-25 13:45 UTCEPSS rescore
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  17. 2026-08-21 23:45 UTCEPSS rescore
  18. 2026-08-21 14:44 UTCOSV refresh
  19. 2026-08-20 22:51 UTCEPSS rescore
  20. 2026-08-19 17:00 UTCEPSS rescore
  21. 2026-08-18 13:44 UTCEPSS rescore
  22. 2026-08-16 14:52 UTCEPSS rescore
  23. 2026-08-16 02:10 UTCEPSS rescore
  24. 2026-08-15 01:26 UTCEPSS rescore
  25. 2026-08-12 13:47 UTCEPSS rescore
  26. 2026-08-09 13:43 UTCEPSS rescore
  27. 2026-08-08 16:33 UTCEPSS rescore
  28. 2026-08-07 16:23 UTCEPSS rescore
  29. 2026-08-06 13:43 UTCEPSS rescore
  30. 2026-08-06 00:54 UTCOSV refresh
  31. 2026-08-05 19:13 UTCEPSS rescore
  32. 2026-08-04 15:05 UTCEPSS rescore
  33. 2026-08-02 02:23 UTCEPSS rescore
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  35. 2026-07-30 16:24 UTCEPSS rescore
  36. 2026-07-30 01:27 UTCEPSS rescore
  37. 2026-07-28 15:32 UTCEPSS rescore
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  40. 2026-07-24 14:14 UTCEPSS rescore
  41. 2026-07-24 14:14 UTCEPSS rescore
  42. 2026-07-23 14:15 UTCEPSS rescore
  43. 2026-07-23 01:40 UTCEG score recompute
  44. 2026-07-22 22:20 UTCEG score recompute
  45. 2026-07-22 14:05 UTCEPSS rescore
  46. 2026-07-21 15:22 UTCEPSS rescore
  47. 2026-07-21 15:22 UTCEPSS rescore
  48. 2026-07-20 17:04 UTCEPSS rescore
  49. 2026-07-20 17:04 UTCEPSS rescore
  50. 2026-07-20 06:34 UTCOSV refresh
  51. 2026-07-19 14:28 UTCEPSS rescore
  52. 2026-07-19 14:28 UTCEPSS rescore
  53. 2026-07-19 02:26 UTCEPSS rescore
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  55. 2026-07-18 10:01 UTCEPSS rescore
  56. 2026-07-16 16:59 UTCEPSS rescore
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  65. 2026-07-11 08:24 UTCEPSS rescore
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  67. 2026-07-09 19:06 UTCEPSS rescore
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  74. 2026-07-04 06:28 UTCEPSS rescore
  75. 2026-07-02 23:35 UTCOSV refresh

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Frequently asked(5)

What is CVE-2019-1549?
CVE-2019-1549 is a medium vulnerability published on September 10, 2019. OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A…
When was CVE-2019-1549 disclosed?
CVE-2019-1549 was first published on September 10, 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-2019-1549 actively exploited?
CVE-2019-1549 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.2% probability of exploitation in the next 30 days (93rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2019-1549?
CVE-2019-1549 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2019-1549?
A fix for CVE-2019-1549 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2019-1549 are linked in the Vendor Advisories panel on this page.

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