CVE-2022-35922

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 27% 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.

Rust-WebSocket is a WebSocket (RFC6455) library written in Rust. In versions prior to 0.26.5 untrusted websocket connections can cause an out-of-memory (OOM) process abort in a client or a server. The root cause of the issue is during dataframe parsing. Affected versions would allocate a buffer based on the declared dataframe size, which may come from an untrusted source. When Vec::with_capacity fails to allocate, the default Rust allocator will abort the current process, killing all threads. This affects only sync (non-Tokio) implementation. Async version also does not limit memory, but does not use with_capacity, so DoS can happen only when bytes for oversized dataframe or message actually got delivered by the attacker. The crashes are fixed in version 0.26.5 by imposing default dataframe size limits. Affected users are advised to update to this version. Users unable to upgrade are advised to filter websocket traffic externally or to only accept trusted traffic.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
71.0%
KEV
Not listed

Published

August 1, 2022

Last Modified

November 21, 2024

References (8)

Affected Packages

(1 across 1 ecosystem)
crates.io(1)
PackageVulnerable rangeFixed inDependents
websocket—0.26.5—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 46× 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. 2026-07-12 05:44 UTCEPSS rescore
  2. 2026-07-12 05:44 UTCEPSS rescore
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  17. 2026-06-28 22:02 UTCOSV refresh
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  1. 2026-06-24 14:03 UTCEPSS rescore
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  22. 2026-06-11 17:55 UTCOSV refresh
  23. 2026-06-11 13:58 UTCEPSS rescore
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  25. 2026-06-10 22:17 UTCEPSS rescore
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  44. 2026-05-31 22:29 UTCEPSS rescore
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  49. 2026-05-29 13:43 UTCEPSS rescore
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  59. 2026-05-26 07:17 UTCEPSS rescore
  60. 2026-05-25 17:56 UTCEG score recompute
  61. 2026-05-24 16:51 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2022-35922?
CVE-2022-35922 is a high vulnerability published on August 1, 2022. Rust-WebSocket is a WebSocket (RFC6455) library written in Rust. In versions prior to 0.26.5 untrusted websocket connections can cause an out-of-memory (OOM) process abort in a client or a server. The root cause of the issue is during dataframe parsing. Affected versions would allocate a buffer…
When was CVE-2022-35922 disclosed?
CVE-2022-35922 was first published in the National Vulnerability Database on August 1, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-35922 actively exploited?
CVE-2022-35922 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-35922?
CVE-2022-35922 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-35922?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-35922, 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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