CVE-2022-36944

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 8.3%, top 6% of all CVEs by exploit prediction. 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
Trending — 3 sources updated this weekElevated
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 8%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file. On its own, it cannot be exploited. There is only a risk in conjunction with Java object deserialization within an application. In such situations, it allows attackers to erase contents of arbitrary files, make network connections, or possibly run arbitrary code (specifically, Function0 functions) via a gadget chain.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: Attend

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%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS
94.4%
KEV
Not listed

Published

September 23, 2022

Last Modified

May 27, 2025

Advisory Details (6)

Auto-updated May 27, 2026
Patch available. Sources: github_release, github_pr.
generic

[SECURITY] Fedora 35 Update: scala-2.13.9-1.fc35 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6ZOZVWY3X72FZZCCRAKRJYTQOJ6LUD6Z/
github_pr

For security, prevent `Function0` execution during `LazyList` deserialization

Fix merged in scala/scala PR #10118 on 2022-08-31 — awaiting tagged release

https://github.com/scala/scala/pull/10118
github_release Patch Available

2.9.0

Patch available: scala/scala-collection-compat v2.9.0

https://github.com/scala/scala-collection-compat/releases/tag/v2.9.0
generic

Impact of CVE-2022-36944 on akka-cluster, akka-actor, akka-remote - #2 by johanandren - Akka Cluster - Discussion Forum for Akka.

https://discuss.lightbend.com/t/impact-of-cve-2022-36944-on-akka-cluster-akka-actor-akka-remote/10007/2
generic

Install | The Scala Programming Language

https://www.scala-lang.org/download/
generic

[SECURITY] Fedora 36 Update: scala-2.13.9-1.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3WMKPFAMFQE3HJVRQ5KOJUTWG264SXI/

Vendor Advisories for CVE-2022-36944(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpatch2023-09-14redhat
redhatscala2023-05-18redhat

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

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.scala-lang:scala-library2.13.0 ... 2.13.8 (9 versions)2.13.9—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

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 14× in last 7d / 51× 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.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCyarocher/lazylist-cve-poc
    First seen May 16, 2023

    POC for the CVE-2022-36944 vulnerability exploit

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-36944?
CVE-2022-36944 is a critical vulnerability published on September 23, 2022. Scala 2.13.x before 2.13.9 has a Java deserialization chain in its JAR file. On its own, it cannot be exploited. There is only a risk in conjunction with Java object deserialization within an application. In such situations, it allows attackers to erase contents of arbitrary files, make network…
When was CVE-2022-36944 disclosed?
CVE-2022-36944 was first published in the National Vulnerability Database on September 23, 2022, with the most recent update on May 27, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-36944 actively exploited?
CVE-2022-36944 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-36944?
CVE-2022-36944 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-36944?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-36944, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-36944

Explore →

Is Your Infrastructure Affected by CVE-2022-36944?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs