CVE-2022-3215

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 52% 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
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

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

NIOHTTP1 and projects using it for generating HTTP responses can be subject to a HTTP Response Injection attack. This occurs when a HTTP/1.1 server accepts user generated input from an incoming request and reflects it into a HTTP/1.1 response header in some form. A malicious user can add newlines to their input (usually in encoded form) and "inject" those newlines into the returned HTTP response. This capability allows users to work around security headers and HTTP/1.1 framing headers by injecting entirely false responses or other new headers. The injected false responses may also be treated as the response to subsequent requests, which can lead to XSS, cache poisoning, and a number of other flaws. This issue was resolved by adding validation to the HTTPHeaders type, ensuring that there's no whitespace incorrectly present in the HTTP headers provided by users. As the existing API surface is non-failable, all invalid characters are replaced by linear whitespace.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
42.4%
KEV
Not listed

Published

September 28, 2022

Last Modified

May 20, 2025

References (2)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 45× 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. 2026-07-11 08:25 UTCEPSS rescore
  2. 2026-07-09 19:08 UTCEPSS rescore
  3. 2026-07-08 15:12 UTCEPSS rescore
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  13. 2026-06-30 23:20 UTCEPSS rescore
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  15. 2026-06-29 14:04 UTCEPSS rescore
  16. 2026-06-28 17:32 UTCOSV refresh
  17. 2026-06-28 14:06 UTCEPSS rescore
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  20. 2026-06-27 03:07 UTCEPSS rescore
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  22. 2026-06-25 13:48 UTCEPSS rescore
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  24. 2026-06-24 14:03 UTCEPSS rescore
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  1. 2026-06-23 21:31 UTCEPSS rescore
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  3. 2026-06-22 14:24 UTCEPSS rescore
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  5. 2026-06-21 14:55 UTCEPSS rescore
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  7. 2026-06-21 01:58 UTCEPSS rescore
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  9. 2026-06-19 19:24 UTCEPSS rescore
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  11. 2026-06-18 17:51 UTCEPSS rescore
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  18. 2026-06-13 22:58 UTCEPSS rescore
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  21. 2026-06-11 13:58 UTCEPSS rescore
  22. 2026-06-11 13:58 UTCEPSS rescore
  23. 2026-06-11 08:39 UTCOSV refresh
  24. 2026-06-10 22:17 UTCEPSS rescore
  25. 2026-06-10 13:20 UTCEPSS rescore
  26. 2026-06-08 14:15 UTCEPSS rescore
  27. 2026-06-08 14:15 UTCEPSS rescore
  28. 2026-06-07 15:23 UTCEPSS rescore
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  30. 2026-06-06 13:46 UTCEPSS rescore
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  39. 2026-06-02 20:11 UTCEPSS rescore
  40. 2026-06-02 20:11 UTCEPSS rescore
  41. 2026-06-01 13:50 UTCEPSS rescore
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  43. 2026-05-31 22:29 UTCEPSS rescore
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  45. 2026-05-31 22:29 UTCEPSS rescore
  46. 2026-05-31 00:15 UTCEPSS rescore
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  48. 2026-05-29 13:43 UTCEPSS rescore
  49. 2026-05-29 13:43 UTCEPSS rescore
  50. 2026-05-28 13:43 UTCEPSS rescore
  51. 2026-05-28 13:43 UTCEPSS rescore
  52. 2026-05-27 13:39 UTCEPSS rescore
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  54. 2026-05-26 13:43 UTCEPSS rescore
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  56. 2026-05-26 07:17 UTCEPSS rescore
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  58. 2026-05-26 07:17 UTCEPSS rescore
  59. 2026-05-25 14:33 UTCEG score recompute
  60. 2026-05-24 16:51 UTCEPSS rescore

Frequently asked(5)

What is CVE-2022-3215?
CVE-2022-3215 is a high vulnerability published on September 28, 2022. NIOHTTP1 and projects using it for generating HTTP responses can be subject to a HTTP Response Injection attack. This occurs when a HTTP/1.1 server accepts user generated input from an incoming request and reflects it into a HTTP/1.1 response header in some form. A malicious user can add newlines…
When was CVE-2022-3215 disclosed?
CVE-2022-3215 was first published in the National Vulnerability Database on September 28, 2022, with the most recent update on May 20, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-3215 actively exploited?
CVE-2022-3215 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-3215?
CVE-2022-3215 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-3215?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-3215, 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.

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