CVE-2026-47859

MEDIUMNVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.3% (19th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 5.4 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-08-27) is not newer than that change (2026-09-04), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (VMware by Broadcom) lists Spring Integration versions 7.0.0 up to and including 7.0.5, 6.5.0 up to and including 6.5.10, 6.4.0 up to and including 6.4.12 and up to and including 5.5.21 as affected. No release containing a fix is confirmed on record.

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
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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 (value × EchelonGraph’s weight)
Severity65% × 45%
The EG Score, 6.5 of 10.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
19th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 26, 2026

Last Modified

September 4, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
No fix on record yet.
Web page

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 17× in last 7d / 78× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 134 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 34 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  3. 2026-10-12 16:01 UTCEG score recompute
  4. 2026-10-11 19:44 UTCEG score recompute
  5. 2026-10-11 16:59 UTCEG score recompute
  6. 2026-10-11 14:23 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-10-10 06:01 UTCEG score recompute
  10. 2026-10-10 06:01 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  11. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-09 03:18 UTCEG score recompute
  13. 2026-10-09 03:18 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  14. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-10-08 01:30 UTCEG score recompute
  16. 2026-10-08 01:29 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  17. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  18. 2026-10-06 23:18 UTCEG score recompute
  19. 2026-10-06 23:18 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  21. 2026-10-06 01:41 UTCEG score recompute
  22. 2026-10-06 01:40 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  24. 2026-10-05 01:24 UTCEG score recompute
  25. 2026-10-05 01:24 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
Show 75 more
  1. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-10-04 02:36 UTCEG score recompute
  3. 2026-10-04 02:36 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  4. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  5. 2026-10-03 04:58 UTCEG score recompute
  6. 2026-10-03 04:58 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  7. 2026-10-02 07:19 UTCEG score recompute
  8. 2026-10-02 07:19 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  9. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  10. 2026-10-01 09:42 UTCEG score recompute
  11. 2026-10-01 09:41 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-09-30 12:03 UTCEG score recompute
  14. 2026-09-30 12:03 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  15. 2026-09-29 14:24 UTCEG score recompute
  16. 2026-09-29 14:23 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  17. 2026-09-28 15:49 UTCEG score recompute
  18. 2026-09-28 15:49 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  19. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  20. 2026-09-27 18:07 UTCEG score recompute
  21. 2026-09-27 18:07 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  22. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  23. 2026-09-26 20:29 UTCEG score recompute
  24. 2026-09-26 20:29 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  25. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  26. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  27. 2026-09-24 22:10 UTCEG score recompute
  28. 2026-09-24 22:10 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  29. 2026-09-23 23:27 UTCEG score recompute
  30. 2026-09-23 23:27 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  31. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-09-23 01:25 UTCEG score recompute
  33. 2026-09-23 01:25 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  34. 2026-09-22 03:47 UTCEG score recompute
  35. 2026-09-22 03:47 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  36. 2026-09-21 06:08 UTCEG score recompute
  37. 2026-09-21 06:08 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  38. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-09-20 08:30 UTCEG score recompute
  40. 2026-09-20 08:30 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  41. 2026-09-19 09:03 UTCEG score recompute
  42. 2026-09-19 09:03 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  43. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  44. 2026-09-18 11:24 UTCEG score recompute
  45. 2026-09-18 11:24 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  46. 2026-09-17 13:46 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  47. 2026-09-16 16:08 UTCEG score recompute
  48. 2026-09-16 16:08 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  49. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  50. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  51. 2026-09-15 18:29 UTCEG score recompute
  52. 2026-09-15 18:29 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  53. 2026-09-14 20:49 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  54. 2026-09-13 23:11 UTCEG score recompute
  55. 2026-09-13 23:11 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  56. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-09-13 01:33 UTCEG score recompute
  58. 2026-09-13 01:33 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  59. 2026-09-12 03:55 UTCEG score recompute
  60. 2026-09-12 03:55 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  61. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  62. 2026-09-11 06:17 UTCEG score recompute
  63. 2026-09-11 06:17 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  64. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  65. 2026-09-10 08:38 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  66. 2026-09-09 10:59 UTCEG score recompute
  67. 2026-09-09 10:59 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  68. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  69. 2026-09-08 13:21 UTCEG score recompute
  70. 2026-09-08 13:20 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  71. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  72. 2026-09-07 15:09 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  73. 2026-09-06 15:52 UTCEG score recompute
  74. 2026-09-06 15:52 UTCGHSA enrichmentGHSA-wh6x-77fw-hcqh · GitHub CVSS 5.4
  75. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-47859?
CVE-2026-47859 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-47859 published?
The CVE record for CVE-2026-47859 was published on August 26, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 4, 2026; the record at its source may have been updated since.
Is CVE-2026-47859 actively exploited?
CVE-2026-47859 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-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?
No fix for CVE-2026-47859 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The CVE record's CNA (VMware by Broadcom) lists Spring Integration versions 7.0.0 up to and including 7.0.5, 6.5.0 up to and including 6.5.10, 6.4.0 up to and including 6.4.12 and up to and including 5.5.21 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-47859 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-47859

Explore →

Is Your Infrastructure Affected by CVE-2026-47859?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Book a Demo →Browse All CVEs