CVE-2026-47859

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 86% of all CVEs by exploit prediction. GitHub Security Advisory enrichment pending alignment with NVD CVSS.

Triggered by: NVD CVSS baseline
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

RFC6587SyslogDeserializer, used by the Spring Integration syslog TCP inbound adapter to decode RFC 6587 / RFC 5424 frames, trusts the sender-supplied octet count of an octet-counted frame and allocates a byte array of exactly that size with no upper bound. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
14%
KEV
Not listed

Published

August 26, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

Unbounded memory allocation in RFC6587SyslogDeserializer (octet-counted framing) — remote DoS

https://spring.io/security/cve-2026-47859

Vendor Advisories for CVE-2026-47859(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 16× in last 7d / 72× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 08:30 UTCEG score recompute
  3. 2026-09-20 08:30 UTCGHSA enrichment
  4. 2026-09-19 09:03 UTCEG score recompute
  5. 2026-09-19 09:03 UTCGHSA enrichment
  6. 2026-09-18 19:28 UTCEPSS rescore
  7. 2026-09-18 11:24 UTCEG score recompute
  8. 2026-09-18 11:24 UTCGHSA enrichment
  9. 2026-09-17 13:46 UTCGHSA enrichment
  10. 2026-09-16 16:08 UTCEG score recompute
  11. 2026-09-16 16:08 UTCGHSA enrichment
  12. 2026-09-16 14:08 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 18:29 UTCEG score recompute
  15. 2026-09-15 18:29 UTCGHSA enrichment
  16. 2026-09-14 20:49 UTCGHSA enrichment
  17. 2026-09-13 23:11 UTCEG score recompute
  18. 2026-09-13 23:11 UTCGHSA enrichment
  19. 2026-09-13 16:47 UTCEPSS rescore
  20. 2026-09-13 01:33 UTCEG score recompute
  21. 2026-09-13 01:33 UTCGHSA enrichment
  22. 2026-09-12 03:55 UTCEG score recompute
  23. 2026-09-12 03:55 UTCGHSA enrichment
  24. 2026-09-11 14:53 UTCEPSS rescore
  25. 2026-09-11 06:17 UTCEG score recompute
Show 47 more
  1. 2026-09-11 06:17 UTCGHSA enrichment
  2. 2026-09-10 09:35 UTCEPSS rescore
  3. 2026-09-10 08:38 UTCGHSA enrichment
  4. 2026-09-09 10:59 UTCEG score recompute
  5. 2026-09-09 10:59 UTCGHSA enrichment
  6. 2026-09-08 22:00 UTCEPSS rescore
  7. 2026-09-08 13:21 UTCEG score recompute
  8. 2026-09-08 13:20 UTCGHSA enrichment
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-07 15:09 UTCGHSA enrichment
  11. 2026-09-06 15:52 UTCEG score recompute
  12. 2026-09-06 15:52 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-05 18:13 UTCEG score recompute
  15. 2026-09-05 18:13 UTCGHSA enrichment
  16. 2026-09-04 20:28 UTCEG score recompute▲ 1.10
  17. 2026-09-04 20:28 UTCGHSA enrichment
  18. 2026-09-04 20:20 UTCNVD updateCVSS v3 → 6.5
  19. 2026-09-04 05:06 UTCEPSS rescore
  20. 2026-09-04 03:24 UTCGHSA enrichment
  21. 2026-09-03 05:43 UTCEG score recompute
  22. 2026-09-03 05:43 UTCGHSA enrichment
  23. 2026-09-02 14:12 UTCEPSS rescore
  24. 2026-09-02 08:03 UTCEG score recompute
  25. 2026-09-02 08:03 UTCGHSA enrichment
  26. 2026-09-01 13:54 UTCEPSS rescore
  27. 2026-09-01 10:23 UTCEG score recompute
  28. 2026-09-01 10:23 UTCGHSA enrichment
  29. 2026-08-31 12:45 UTCEG score recompute
  30. 2026-08-31 12:44 UTCGHSA enrichment
  31. 2026-08-30 19:17 UTCEPSS rescore
  32. 2026-08-30 14:59 UTCEG score recompute
  33. 2026-08-30 14:59 UTCGHSA enrichment
  34. 2026-08-30 01:22 UTCEPSS rescore
  35. 2026-08-29 17:21 UTCEG score recompute
  36. 2026-08-29 17:21 UTCGHSA enrichment
  37. 2026-08-28 21:41 UTCEPSS rescore
  38. 2026-08-28 19:06 UTCGHSA enrichment
  39. 2026-08-28 15:09 UTCGHSA enrichment
  40. 2026-08-27 17:29 UTCEG score recompute
  41. 2026-08-27 17:29 UTCGHSA enrichment
  42. 2026-08-27 17:05 UTCEG score recompute
  43. 2026-08-27 17:05 UTCGHSA enrichment
  44. 2026-08-27 14:25 UTCEPSS rescore
  45. 2026-08-27 01:22 UTCEG score recompute
  46. 2026-08-27 00:22 UTCEG score recompute
  47. 2026-08-27 00:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47859?
CVE-2026-47859 is a medium vulnerability published on August 26, 2026. RFC6587SyslogDeserializer, used by the Spring Integration syslog TCP inbound adapter to decode RFC 6587 / RFC 5424 frames, trusts the sender-supplied octet count of an octet-counted frame and allocates a byte array of exactly that size with no upper bound. Spring Integration 7.1.0 Spring…
When was CVE-2026-47859 disclosed?
CVE-2026-47859 was first published in the National Vulnerability Database on August 26, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47859 actively exploited?
CVE-2026-47859 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 86.2% of all scored CVEs.
What is the CVSS score of CVE-2026-47859?
CVE-2026-47859 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-47859?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47859, 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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