CVE-2026-27671

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-09. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0

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

Due to improper RFC protocol validation in the SAP Kernel used by the Application Server ABAP of SAP NetWeaver and ABAP Platform, an unauthenticated attacker can send a crafted RFC request that exploits logical errors in memory management, leading to memory corruption. This could lead to a high impact on the confidentiality, integrity, and availability of the application.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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
Severity98% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
36%
KEV
Not listed

Published

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jul 25, 2026
No patch confirmed yet.
generic

SAP Security Notes & News

https://url.sap/sapsecuritypatchday
generic
https://me.sap.com/notes/3717897

Vendor Advisories for CVE-2026-27671(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 21× in last 7d / 120× 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.

Showing the most recent 100 of 244 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-27671?
CVE-2026-27671 is a critical vulnerability published on June 9, 2026. Due to improper RFC protocol validation in the SAP Kernel used by the Application Server ABAP of SAP NetWeaver and ABAP Platform, an unauthenticated attacker can send a crafted RFC request that exploits logical errors in memory management, leading to memory corruption. This could lead to a high…
When was CVE-2026-27671 disclosed?
CVE-2026-27671 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27671 actively exploited?
CVE-2026-27671 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 64.3% of all scored CVEs.
What is the CVSS score of CVE-2026-27671?
CVE-2026-27671 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-27671?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27671, 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

Explore the affected products and dependency analysis for CVE-2026-27671

Explore →

Is Your Infrastructure Affected by CVE-2026-27671?

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

Start Free Scan →Browse All CVEs