CVE-2025-63235

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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.

In sol commit 373d848 (2024-12-12), the broker does not fully release resources when handling malformed or duplicate CONNECT packets. When clients send invalid CONNECT packets - either due to repeated attempts or failed authentication - the server may silently drop the connection or send a CONNACK but fail to close the session or deallocate internal resources. This behavior allows an attacker to create numerous half-open connections that consume memory and file descriptors indefinitely, potentially triggering the Linux OOM killer and causing a denial of service.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

August 7, 2026

Last Modified

August 7, 2026

Advisory Details (2)

Auto-updated Aug 7, 2026
No patch confirmed yet.
generic

sol-vulnerabilities/CVE-2025-63235.md at main · peter-pe/sol-vulnerabilities · GitHub

https://github.com/peter-pe/sol-vulnerabilities/blob/main/CVE-2025-63235.md
generic

Five bugs in sol · Issue #12 · codepr/sol · GitHub

https://github.com/codepr/sol/issues/12

Vendor Advisories for CVE-2025-63235(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 26× in last 7d / 57× 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. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 20:36 UTCGHSA enrichment
  3. 2026-08-20 07:42 UTCGHSA enrichment
  4. 2026-08-19 18:48 UTCEG score recompute
  5. 2026-08-19 18:48 UTCGHSA enrichment
  6. 2026-08-19 17:03 UTCEPSS rescore
  7. 2026-08-19 04:35 UTCGHSA enrichment
  8. 2026-08-18 15:40 UTCEG score recompute
  9. 2026-08-18 15:40 UTCGHSA enrichment
  10. 2026-08-18 13:47 UTCEPSS rescore
  11. 2026-08-18 01:34 UTCEG score recompute
  12. 2026-08-18 01:34 UTCGHSA enrichment
  13. 2026-08-17 13:46 UTCEPSS rescore
  14. 2026-08-17 12:41 UTCGHSA enrichment
  15. 2026-08-16 23:47 UTCEG score recompute
  16. 2026-08-16 23:47 UTCGHSA enrichment
  17. 2026-08-16 14:55 UTCEPSS rescore
  18. 2026-08-16 10:52 UTCEG score recompute
  19. 2026-08-16 10:52 UTCGHSA enrichment
  20. 2026-08-16 02:13 UTCEPSS rescore
  21. 2026-08-15 21:59 UTCGHSA enrichment
  22. 2026-08-15 09:05 UTCEG score recompute
  23. 2026-08-15 09:05 UTCGHSA enrichment
  24. 2026-08-15 01:30 UTCEPSS rescore
  25. 2026-08-15 01:29 UTCEPSS rescore
Show 32 more
  1. 2026-08-14 20:11 UTCGHSA enrichment
  2. 2026-08-14 07:18 UTCEG score recompute
  3. 2026-08-14 07:18 UTCGHSA enrichment
  4. 2026-08-13 21:59 UTCEPSS rescore
  5. 2026-08-13 18:24 UTCGHSA enrichment
  6. 2026-08-13 05:30 UTCGHSA enrichment
  7. 2026-08-12 16:36 UTCEG score recompute
  8. 2026-08-12 16:36 UTCGHSA enrichment
  9. 2026-08-12 13:50 UTCEPSS rescore
  10. 2026-08-12 03:40 UTCGHSA enrichment
  11. 2026-08-11 14:46 UTCEG score recompute
  12. 2026-08-11 14:46 UTCGHSA enrichment
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 01:52 UTCEG score recompute
  15. 2026-08-11 01:52 UTCGHSA enrichment
  16. 2026-08-10 23:59 UTCEPSS rescore
  17. 2026-08-10 12:58 UTCGHSA enrichment
  18. 2026-08-10 00:04 UTCEG score recompute
  19. 2026-08-10 00:04 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-09 13:46 UTCEPSS rescore
  22. 2026-08-09 11:11 UTCGHSA enrichment
  23. 2026-08-08 22:17 UTCEG score recompute
  24. 2026-08-08 22:17 UTCGHSA enrichment
  25. 2026-08-08 16:36 UTCEPSS rescore
  26. 2026-08-08 09:23 UTCEG score recompute
  27. 2026-08-08 09:23 UTCGHSA enrichment
  28. 2026-08-07 20:30 UTCEG score recompute▲ 7.50
  29. 2026-08-07 20:30 UTCNVD updateCVSS v3 → 7.5 · severity → HIGH
  30. 2026-08-07 19:28 UTCNVD update
  31. 2026-08-07 18:47 UTCEG score recompute
  32. 2026-08-07 18:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-63235?
CVE-2025-63235 is a high vulnerability published on August 7, 2026. In sol commit 373d848 (2024-12-12), the broker does not fully release resources when handling malformed or duplicate CONNECT packets. When clients send invalid CONNECT packets - either due to repeated attempts or failed authentication - the server may silently drop the connection or send a CONNACK…
When was CVE-2025-63235 disclosed?
CVE-2025-63235 was first published in the National Vulnerability Database on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-63235 actively exploited?
CVE-2025-63235 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 75.3% of all scored CVEs.
What is the CVSS score of CVE-2025-63235?
CVE-2025-63235 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-63235?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-63235, 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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