CVE-2026-62653

MEDIUMPre-NVD 6.86.8
EchelonGraph scoreMEDIUM confidence

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

Score 6.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-08. A secondary CVSS source baseline 6.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week
6.8EG
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: 6.8Exploit: 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 (Siemens) lists Siemens Reyrolle 7SR5 versions before V2.70 as affected. No release containing a fix is confirmed on record.

A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The input received over a proprietary communication protocol that is exposed when the device is placed into a special firmware-update mode is not properly validated, resulting in a memory corruption condition. This could allow an unauthenticated attacker with physical access to the device to cause a crash and potentially execute arbitrary code on the device.

CVSS v3
6.8
EG Score
6.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100

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)
Severity68% × 45%
The EG Score, 6.8 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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
18th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

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 total (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)14 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 total (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

September 8, 2026

Last Modified

September 14, 2026

Advisory Details (1)

Auto-updated Sep 8, 2026
No fix on record yet.
Web page

SSA-142885

https://cert-portal.siemens.com/productcert/html/ssa-142885.html

Vendor Advisories for CVE-2026-62653(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 18× 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.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  3. 2026-10-12 15:49 UTCEG score recompute
  4. 2026-10-11 19:34 UTCEG score recompute
  5. 2026-10-11 16:55 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  6. 2026-10-11 16:49 UTCEG score recompute
  7. 2026-10-11 14:10 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-10 01:38 UTCEG score recompute
  11. 2026-10-10 01:37 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-10-09 00:44 UTCEG score recompute
  14. 2026-10-09 00:44 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  17. 2026-10-07 15:21 UTCEG score recompute
  18. 2026-10-07 15:21 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  19. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  20. 2026-10-06 13:44 UTCEG score recompute
  21. 2026-10-06 13:44 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-10-05 12:51 UTCEG score recompute
  24. 2026-10-05 12:51 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 18th percentile
Show 71 more
  1. 2026-10-04 11:58 UTCEG score recompute
  2. 2026-10-04 11:58 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  3. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  4. 2026-10-03 11:05 UTCEG score recompute
  5. 2026-10-03 11:05 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  6. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  7. 2026-10-02 09:38 UTCEG score recompute
  8. 2026-10-02 09:38 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  9. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  10. 2026-10-01 08:46 UTCEG score recompute
  11. 2026-10-01 08:46 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  12. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  13. 2026-09-30 07:53 UTCEG score recompute
  14. 2026-09-30 07:53 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  15. 2026-09-29 06:59 UTCEG score recompute
  16. 2026-09-29 06:59 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  17. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  18. 2026-09-28 06:06 UTCEG score recompute
  19. 2026-09-28 06:06 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  20. 2026-09-27 05:14 UTCEG score recompute
  21. 2026-09-27 05:14 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  23. 2026-09-26 03:44 UTCEG score recompute
  24. 2026-09-26 03:44 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  25. 2026-09-25 02:49 UTCEG score recompute
  26. 2026-09-25 02:49 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  27. 2026-09-24 01:55 UTCEG score recompute
  28. 2026-09-24 01:55 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  29. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  30. 2026-09-23 01:03 UTCEG score recompute
  31. 2026-09-23 01:03 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  32. 2026-09-22 00:10 UTCEG score recompute
  33. 2026-09-22 00:10 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  34. 2026-09-20 23:16 UTCEG score recompute
  35. 2026-09-20 23:16 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  36. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  37. 2026-09-19 22:15 UTCEG score recompute
  38. 2026-09-19 22:15 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  39. 2026-09-18 21:21 UTCEG score recompute
  40. 2026-09-18 21:21 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  41. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  42. 2026-09-17 20:20 UTCEG score recompute
  43. 2026-09-17 20:20 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  44. 2026-09-16 18:18 UTCEG score recompute
  45. 2026-09-16 18:18 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  46. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  47. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  48. 2026-09-15 15:26 UTCEG score recompute
  49. 2026-09-15 15:26 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  50. 2026-09-14 14:32 UTCEG score recompute
  51. 2026-09-14 14:32 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  52. 2026-09-14 14:00 UTCEG score recompute
  53. 2026-09-14 14:00 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  54. 2026-09-14 02:45 UTCEG score recompute
  55. 2026-09-14 02:45 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  56. 2026-09-13 01:53 UTCEG score recompute
  57. 2026-09-13 01:53 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  58. 2026-09-12 01:00 UTCEG score recompute
  59. 2026-09-12 01:00 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  60. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  61. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  62. 2026-09-11 00:07 UTCEG score recompute
  63. 2026-09-11 00:07 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  64. 2026-09-09 23:13 UTCEG score recompute
  65. 2026-09-09 23:12 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  66. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  67. 2026-09-08 19:50 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  68. 2026-09-08 09:39 UTCEG score recompute
  69. 2026-09-08 09:39 UTCGHSA enrichmentGHSA-wp7r-98f8-j5f3 · GitHub severity HIGH · GitHub CVSS 6.8
  70. 2026-09-08 08:36 UTCEG score recomputeFirst assessed: 6.8 MEDIUM
  71. 2026-09-08 08:33 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-62653?
CVE-2026-62653 is a medium-severity vulnerability; its CVE record was published on September 8, 2026. A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The input received over a proprietary communication protocol that is exposed when the device is placed into a special firmware-update mode is not properly validated, resulting in a memory corruption condition. This could…
When was the CVE record for CVE-2026-62653 published?
The CVE record for CVE-2026-62653 was published on September 8, 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 14, 2026; the record at its source may have been updated since.
Is CVE-2026-62653 actively exploited?
CVE-2026-62653 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (18th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62653?
CVE-2026-62653 has a CVSS base score of 6.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62653?
No fix for CVE-2026-62653 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 (Siemens) lists Siemens Reyrolle 7SR5 versions before V2.70 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-62653 are linked in the Vendor Advisories panel on this page.

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