CVE-2022-39837

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2022-10-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8. Due to a faulty DLT file parser, a crafted DLT file that crashes the process can be created. This is due to missing validation checks. There is a NULL pointer dereference,

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
41
EG Risk 41/100CISA 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
Severity55% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
36th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (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

October 25, 2022

Last Modified

May 7, 2025

References (6)

Affected Packages

(5 across 5 ecosystems)
Debian:10(1)
PackageVulnerable rangeFix by version rangeDependents
dlt-daemon2.18.0-1, 2.18.0-1+deb10u1
  • every version up to 2.18.0-1+deb10u2: fixed in 2.18.0-1+deb10u2
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
dlt-daemon2.18.10-1 ... 3.0.0-9 (41 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
dlt-daemon2.18.10-1 ... 3.0.0-9 (32 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
dlt-daemon—
  • every version up to 2.18.9-1: fixed in 2.18.9-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
dlt-daemon—
  • every version up to 2.18.9-1: fixed in 2.18.9-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 25× 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 185 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2022-39837?
CVE-2022-39837 is a medium vulnerability published on October 25, 2022. An issue was discovered in Connected Vehicle Systems Alliance (COVESA) dlt-daemon through 2.18.8. Due to a faulty DLT file parser, a crafted DLT file that crashes the process can be created. This is due to missing validation checks. There is a NULL pointer dereference,
When was CVE-2022-39837 disclosed?
CVE-2022-39837 was first published on October 25, 2022, with the most recent update on May 7, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-39837 actively exploited?
CVE-2022-39837 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2022-39837?
CVE-2022-39837 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2022-39837?
A fix for CVE-2022-39837 is available: update to the fixed version the vendor names in its advisory.

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