CVE-2026-62380

HIGHNVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory published 2026-08-22. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Netty (io.netty:netty-codec-socks) versions 4.2.0.Final through 4.2.16.Final and 4.1.x through 4.1.136.Final contain null byte, CRLF, and credential injection vulnerabilities in the SOCKS4 (Socks4ClientEncoder) and SOCKS5 (Socks5ClientEncoder) client encoders, which fail to validate domain address and authentication (username/password) fields. An attacker able to control these fields can inject null bytes or CRLF characters to truncate or alter values, potentially enabling domain spoofing, SOCKS4 userid truncation, authentication data injection, and protocol confusion. Fixed in 4.2.17.Final and 4.1.137.Final.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 22, 2026

Last Modified

August 27, 2026

Advisory Details (2)

Auto-updated Aug 22, 2026
Patch available. Sources: github.
generic

Netty before 4.2.16.Final SOCKS Proxy Null Byte Injection | Advisories | VulnCheck

https://www.vulncheck.com/advisories/netty-before-final-socks-proxy-null-byte-injection
github Patch Available

SOCKS4/5 Proxy Encoder Null Byte and Credential Injection · Advisory · netty/netty · GitHub

https://github.com/netty/netty/security/advisories/GHSA-cc6x-ffm5-83wf

Vendor Advisories for CVE-2026-62380(1)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
netty1:4.1.48-10 ... 1:4.1.48-9 (12 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
netty1:4.1.48-10 ... 1:4.1.48-16 (8 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
netty1:4.1.48-10 ... 1:4.1.48-16 (7 versions)——

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 23× in last 7d / 99× 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. 2026-09-19 00:55 UTCEG score recompute
  2. 2026-09-19 00:55 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 12:30 UTCGHSA enrichment
  5. 2026-09-18 00:06 UTCEG score recompute
  6. 2026-09-18 00:06 UTCGHSA enrichment
  7. 2026-09-17 10:22 UTCGHSA enrichment
  8. 2026-09-16 21:58 UTCEG score recompute
  9. 2026-09-16 21:58 UTCGHSA enrichment
  10. 2026-09-16 14:08 UTCEPSS rescore
  11. 2026-09-16 09:34 UTCEG score recompute
  12. 2026-09-16 09:34 UTCGHSA enrichment
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 19:52 UTCGHSA enrichment
  15. 2026-09-15 07:28 UTCEG score recompute
  16. 2026-09-15 07:28 UTCGHSA enrichment
  17. 2026-09-14 19:04 UTCGHSA enrichment
  18. 2026-09-14 05:49 UTCGHSA enrichment
  19. 2026-09-13 17:26 UTCEG score recompute
  20. 2026-09-13 17:26 UTCGHSA enrichment
  21. 2026-09-13 05:02 UTCGHSA enrichment
  22. 2026-09-12 16:38 UTCEG score recompute
  23. 2026-09-12 16:38 UTCGHSA enrichment
  24. 2026-09-12 04:14 UTCGHSA enrichment
  25. 2026-09-11 15:50 UTCEG score recompute
Show 74 more
  1. 2026-09-11 15:50 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 09:37 UTCEPSS rescore
  4. 2026-09-11 03:26 UTCGHSA enrichment
  5. 2026-09-10 15:02 UTCEG score recompute
  6. 2026-09-10 15:02 UTCGHSA enrichment
  7. 2026-09-10 02:38 UTCGHSA enrichment
  8. 2026-09-09 14:13 UTCGHSA enrichment
  9. 2026-09-09 01:42 UTCEG score recompute
  10. 2026-09-09 01:42 UTCGHSA enrichment
  11. 2026-09-08 22:01 UTCEPSS rescore
  12. 2026-09-07 22:00 UTCEG score recompute
  13. 2026-09-07 22:00 UTCGHSA enrichment
  14. 2026-09-07 16:01 UTCEPSS rescore
  15. 2026-09-07 09:35 UTCGHSA enrichment
  16. 2026-09-06 21:11 UTCEG score recompute
  17. 2026-09-06 21:11 UTCGHSA enrichment
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-06 08:46 UTCGHSA enrichment
  20. 2026-09-05 20:21 UTCEG score recompute
  21. 2026-09-05 20:21 UTCGHSA enrichment
  22. 2026-09-05 07:58 UTCGHSA enrichment
  23. 2026-09-04 19:34 UTCEG score recompute
  24. 2026-09-04 19:34 UTCGHSA enrichment
  25. 2026-09-04 07:11 UTCEG score recompute
  26. 2026-09-04 07:11 UTCGHSA enrichment
  27. 2026-09-04 05:07 UTCEPSS rescore
  28. 2026-09-03 18:12 UTCGHSA enrichment
  29. 2026-09-03 05:46 UTCGHSA enrichment
  30. 2026-09-02 17:22 UTCEG score recompute
  31. 2026-09-02 17:22 UTCGHSA enrichment
  32. 2026-09-02 14:12 UTCEPSS rescore
  33. 2026-09-02 04:57 UTCGHSA enrichment
  34. 2026-09-01 16:29 UTCEG score recompute
  35. 2026-09-01 16:29 UTCGHSA enrichment
  36. 2026-09-01 13:54 UTCEPSS rescore
  37. 2026-09-01 04:40 UTCEPSS rescore
  38. 2026-09-01 04:04 UTCGHSA enrichment
  39. 2026-08-31 15:04 UTCGHSA enrichment
  40. 2026-08-31 02:38 UTCEG score recompute
  41. 2026-08-31 02:38 UTCGHSA enrichment
  42. 2026-08-30 19:17 UTCEPSS rescore
  43. 2026-08-30 14:14 UTCGHSA enrichment
  44. 2026-08-30 01:50 UTCEG score recompute
  45. 2026-08-30 01:50 UTCGHSA enrichment
  46. 2026-08-30 01:22 UTCEPSS rescore
  47. 2026-08-29 13:26 UTCGHSA enrichment
  48. 2026-08-29 01:00 UTCEG score recompute
  49. 2026-08-29 01:00 UTCGHSA enrichment
  50. 2026-08-28 21:42 UTCEPSS rescore
  51. 2026-08-28 09:01 UTCEG score recompute
  52. 2026-08-28 09:01 UTCGHSA enrichment
  53. 2026-08-27 20:37 UTCEG score recompute▲ 1.20
  54. 2026-08-27 20:37 UTCGHSA enrichment
  55. 2026-08-27 20:36 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  56. 2026-08-27 16:37 UTCEG score recompute
  57. 2026-08-27 16:37 UTCGHSA enrichment
  58. 2026-08-27 14:25 UTCEPSS rescore
  59. 2026-08-26 17:25 UTCEG score recompute
  60. 2026-08-26 17:25 UTCGHSA enrichment
  61. 2026-08-26 16:23 UTCEG score recompute
  62. 2026-08-26 16:23 UTCGHSA enrichment
  63. 2026-08-26 14:46 UTCEPSS rescore
  64. 2026-08-26 10:09 UTCEG score recompute
  65. 2026-08-26 10:09 UTCGHSA enrichment
  66. 2026-08-25 13:49 UTCEPSS rescore
  67. 2026-08-25 10:54 UTCEG score recompute
  68. 2026-08-25 10:54 UTCGHSA enrichment
  69. 2026-08-24 11:43 UTCEG score recompute
  70. 2026-08-24 11:43 UTCGHSA enrichment
  71. 2026-08-23 12:32 UTCGHSA enrichment
  72. 2026-08-22 13:21 UTCEG score recompute
  73. 2026-08-22 12:46 UTCEG score recompute
  74. 2026-08-22 12:45 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-62380?
CVE-2026-62380 is a high vulnerability published on August 22, 2026. Netty (io.netty:netty-codec-socks) versions 4.2.0.Final through 4.2.16.Final and 4.1.x through 4.1.136.Final contain null byte, CRLF, and credential injection vulnerabilities in the SOCKS4 (Socks4ClientEncoder) and SOCKS5 (Socks5ClientEncoder) client encoders, which fail to validate domain address…
When was CVE-2026-62380 disclosed?
CVE-2026-62380 was first published in the National Vulnerability Database on August 22, 2026, with the most recent update on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62380 actively exploited?
CVE-2026-62380 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 82.9% of all scored CVEs.
What is the CVSS score of CVE-2026-62380?
CVE-2026-62380 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-62380?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62380, 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

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