CVE-2022-1473

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 2.5% (84th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
50
EG Risk 50/100CISA 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
Severity75% × 45%
Exploitation3% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; 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
2.5%
EPSS %ILE
84th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; 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 (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

May 3, 2022

Last Modified

May 5, 2025

References (10)

Vendor Advisories for CVE-2022-1473(1)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulibssl3 (3.0.2-0ubuntu1.1) @ jammy2026-05-25ubuntu
ubuntulibssl1.0.0 (1.0.2g-1ubuntu4.20+esm3) @ xenial2026-05-25ubuntu
redhatopenssl-1:3.0.1-41.el9_02022-08-30redhat

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

(11 across 11 ecosystems)
Alpine:v3.15(1)
PackageVulnerable rangeFix by version rangeDependents
openssl3—
  • every version up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.16(1)
PackageVulnerable rangeFix by version rangeDependents
openssl3—
  • every version up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.17(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.18(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.19(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.20(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.21(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.22(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.23(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
Alpine:v3.24(1)
PackageVulnerable rangeFix by version rangeDependents
openssl—
  • 3.0.0 up to 3.0.3-r0: fixed in 3.0.3-r0
—
crates.io(1)
PackageVulnerable rangeFix by version rangeDependents
openssl-src—
  • 300.0.0 up to 300.0.6: fixed in 300.0.6
—

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 8× in last 7d / 31× 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 178 total refreshes for this CVE.

  1. 2026-10-09 20:04 UTCEPSS rescore
  2. 2026-10-08 16:40 UTCEPSS rescore
  3. 2026-10-07 23:45 UTCEPSS rescore
  4. 2026-10-06 15:14 UTCEPSS rescore
  5. 2026-10-05 17:40 UTCEPSS rescore
  6. 2026-10-04 23:19 UTCEPSS rescore
  7. 2026-10-03 14:22 UTCEPSS rescore
  8. 2026-10-03 14:22 UTCEPSS rescore
  9. 2026-10-02 16:23 UTCEPSS rescore
  10. 2026-09-30 15:47 UTCEG score recompute
  11. 2026-09-30 15:00 UTCEPSS rescore
  12. 2026-09-29 15:15 UTCEPSS rescore
  13. 2026-09-28 13:47 UTCEPSS rescore
  14. 2026-09-26 15:54 UTCEPSS rescore
  15. 2026-09-26 00:21 UTCEPSS rescore
  16. 2026-09-24 23:43 UTCOSV refresh
  17. 2026-09-24 14:00 UTCEPSS rescore
  18. 2026-09-24 14:00 UTCEPSS rescore
  19. 2026-09-23 13:45 UTCEPSS rescore
  20. 2026-09-22 14:44 UTCEPSS rescore
  21. 2026-09-21 20:28 UTCEPSS rescore
  22. 2026-09-20 20:13 UTCEPSS rescore
  23. 2026-09-19 15:38 UTCEPSS rescore
  24. 2026-09-18 19:24 UTCEPSS rescore
  25. 2026-09-17 19:23 UTCEPSS rescore
Show 75 more
  1. 2026-09-16 14:05 UTCEPSS rescore
  2. 2026-09-16 14:05 UTCEPSS rescore
  3. 2026-09-15 03:06 UTCEPSS rescore
  4. 2026-09-12 14:57 UTCEPSS rescore
  5. 2026-09-11 14:49 UTCEPSS rescore
  6. 2026-09-11 09:33 UTCEPSS rescore
  7. 2026-09-08 21:57 UTCEPSS rescore
  8. 2026-09-07 15:58 UTCEPSS rescore
  9. 2026-09-06 13:45 UTCEPSS rescore
  10. 2026-09-05 15:25 UTCEPSS rescore
  11. 2026-09-05 15:21 UTCOSV refresh
  12. 2026-09-04 13:57 UTCEPSS rescore
  13. 2026-09-04 05:03 UTCEPSS rescore
  14. 2026-09-02 14:09 UTCEPSS rescore
  15. 2026-09-01 13:51 UTCEPSS rescore
  16. 2026-08-30 19:14 UTCEPSS rescore
  17. 2026-08-30 01:19 UTCEPSS rescore
  18. 2026-08-28 21:38 UTCEPSS rescore
  19. 2026-08-27 14:22 UTCEPSS rescore
  20. 2026-08-26 14:43 UTCEPSS rescore
  21. 2026-08-25 13:46 UTCEPSS rescore
  22. 2026-08-24 14:13 UTCEPSS rescore
  23. 2026-08-21 23:46 UTCEPSS rescore
  24. 2026-08-20 22:52 UTCEPSS rescore
  25. 2026-08-19 17:01 UTCEPSS rescore
  26. 2026-08-19 01:59 UTCOSV refresh
  27. 2026-08-18 13:45 UTCEPSS rescore
  28. 2026-08-17 13:44 UTCEPSS rescore
  29. 2026-08-16 14:53 UTCEPSS rescore
  30. 2026-08-16 02:11 UTCEPSS rescore
  31. 2026-08-15 01:27 UTCEPSS rescore
  32. 2026-08-13 21:57 UTCEPSS rescore
  33. 2026-08-12 13:48 UTCEPSS rescore
  34. 2026-08-11 13:38 UTCEPSS rescore
  35. 2026-08-08 16:34 UTCEPSS rescore
  36. 2026-08-07 16:24 UTCEPSS rescore
  37. 2026-08-06 13:44 UTCEPSS rescore
  38. 2026-08-05 19:15 UTCEPSS rescore
  39. 2026-08-04 15:06 UTCEPSS rescore
  40. 2026-08-04 10:34 UTCEPSS rescore
  41. 2026-08-03 21:27 UTCOSV refresh
  42. 2026-08-03 10:33 UTCEPSS rescore
  43. 2026-08-02 02:24 UTCEPSS rescore
  44. 2026-08-01 04:13 UTCEPSS rescore
  45. 2026-07-30 16:25 UTCEPSS rescore
  46. 2026-07-30 01:28 UTCEPSS rescore
  47. 2026-07-28 15:33 UTCEPSS rescore
  48. 2026-07-26 14:52 UTCEPSS rescore
  49. 2026-07-25 14:15 UTCEPSS rescore
  50. 2026-07-24 14:15 UTCEPSS rescore
  51. 2026-07-24 14:15 UTCEPSS rescore
  52. 2026-07-23 14:16 UTCEPSS rescore
  53. 2026-07-23 02:07 UTCEG score recompute
  54. 2026-07-22 22:53 UTCEG score recompute
  55. 2026-07-22 14:06 UTCEPSS rescore
  56. 2026-07-21 15:22 UTCEPSS rescore
  57. 2026-07-21 15:22 UTCEPSS rescore
  58. 2026-07-20 17:05 UTCEPSS rescore
  59. 2026-07-19 14:29 UTCEPSS rescore
  60. 2026-07-19 02:27 UTCEPSS rescore
  61. 2026-07-19 02:27 UTCEPSS rescore
  62. 2026-07-18 10:02 UTCEPSS rescore
  63. 2026-07-17 13:29 UTCOSV refresh
  64. 2026-07-16 17:00 UTCEPSS rescore
  65. 2026-07-16 17:00 UTCEPSS rescore
  66. 2026-07-15 16:55 UTCEPSS rescore
  67. 2026-07-15 01:58 UTCEPSS rescore
  68. 2026-07-15 01:58 UTCEPSS rescore
  69. 2026-07-13 22:27 UTCEPSS rescore
  70. 2026-07-13 06:11 UTCEPSS rescore
  71. 2026-07-13 06:11 UTCEPSS rescore
  72. 2026-07-12 05:44 UTCEPSS rescore
  73. 2026-07-11 08:25 UTCEPSS rescore
  74. 2026-07-09 19:07 UTCEPSS rescore
  75. 2026-07-09 19:07 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-1473?
CVE-2022-1473 is a high vulnerability published on May 3, 2022. The OPENSSLLHflush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will…
When was CVE-2022-1473 disclosed?
CVE-2022-1473 was first published on May 3, 2022, with the most recent update on May 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-1473 actively exploited?
CVE-2022-1473 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.5% probability of exploitation in the next 30 days (84th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-1473?
CVE-2022-1473 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-1473?
A fix for CVE-2022-1473 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2022-1473 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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