CVE-2026-17548

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (10th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week
5.3EG
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: 0.2%CVSS: 5.3Exploit: 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 (Checkmk GmbH) lists Checkmk GmbH Checkmk versions 2.5.0 up to but not including 2.5.0p12, 2.4.0 up to but not including 2.4.0p36 and 2.3.0 up to but not including 2.3.0p50 as affected. No release containing a fix is confirmed on record.

Missing authorization in Checkmk <2.5.0p12, <2.4.0p36, <2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity53% × 45%
The EG Score, 5.3 of 10.
Exploitation0.2% × 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
0.2%
EPSS %ILE
10th
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 25, 2026

Last Modified

August 26, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No fix on record yet.
Web page

Werk #22115: Fix missing authorization for viewing background jobs

https://checkmk.com/werk/22115

Vendor Advisories for CVE-2026-17548(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 / 68× 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 127 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 27 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  2. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  3. 2026-10-12 16:28 UTCEG score recompute
  4. 2026-10-11 20:08 UTCEG score recompute
  5. 2026-10-11 17:21 UTCEG score recompute
  6. 2026-10-11 14:53 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-10 12:21 UTCEG score recompute
  10. 2026-10-10 12:20 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  11. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  12. 2026-10-09 07:56 UTCEG score recompute
  13. 2026-10-09 07:56 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  14. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  15. 2026-10-08 06:07 UTCEG score recompute
  16. 2026-10-08 06:07 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  17. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  18. 2026-10-07 04:24 UTCEG score recompute
  19. 2026-10-07 04:24 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  20. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  21. 2026-10-06 02:40 UTCEG score recompute
  22. 2026-10-06 02:40 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-10-04 20:36 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
Show 75 more
  1. 2026-10-03 16:28 UTCEG score recompute
  2. 2026-10-03 16:28 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  3. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  4. 2026-10-02 10:20 UTCEG score recompute
  5. 2026-10-02 10:20 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  6. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-10-01 08:36 UTCEG score recompute
  8. 2026-10-01 08:36 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  9. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  10. 2026-09-30 06:53 UTCEG score recompute
  11. 2026-09-30 06:53 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  12. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  13. 2026-09-29 01:37 UTCEG score recompute
  14. 2026-09-29 01:37 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  15. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  16. 2026-09-27 23:53 UTCEG score recompute
  17. 2026-09-27 23:53 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  18. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  19. 2026-09-26 22:10 UTCEG score recompute
  20. 2026-09-26 22:09 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  22. 2026-09-25 04:04 UTCEG score recompute
  23. 2026-09-25 04:04 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  24. 2026-09-24 02:20 UTCEG score recompute
  25. 2026-09-24 02:20 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  26. 2026-09-23 00:37 UTCEG score recompute
  27. 2026-09-23 00:37 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  28. 2026-09-21 22:54 UTCEG score recompute
  29. 2026-09-21 22:53 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  30. 2026-09-20 21:10 UTCEG score recompute
  31. 2026-09-20 21:09 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  32. 2026-09-19 19:24 UTCEG score recompute
  33. 2026-09-19 19:24 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  34. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  35. 2026-09-18 17:41 UTCEG score recompute
  36. 2026-09-18 17:41 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  37. 2026-09-17 15:58 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  38. 2026-09-16 14:14 UTCEG score recompute
  39. 2026-09-16 14:14 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  40. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  41. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-09-15 11:49 UTCEG score recompute
  43. 2026-09-15 11:49 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  44. 2026-09-14 10:06 UTCEG score recompute
  45. 2026-09-14 10:06 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  46. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  47. 2026-09-13 08:13 UTCEG score recompute
  48. 2026-09-13 08:13 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  49. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  50. 2026-09-12 06:30 UTCEG score recompute
  51. 2026-09-12 06:30 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  52. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  54. 2026-09-11 04:46 UTCEG score recompute
  55. 2026-09-11 04:46 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  56. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  57. 2026-09-10 03:03 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  58. 2026-09-09 01:18 UTCEG score recompute
  59. 2026-09-09 01:18 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  60. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  61. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  62. 2026-09-07 16:00 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  63. 2026-09-06 14:17 UTCEG score recompute
  64. 2026-09-06 14:17 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  65. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  66. 2026-09-05 12:34 UTCEG score recompute
  67. 2026-09-05 12:34 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  68. 2026-09-04 10:51 UTCEG score recompute
  69. 2026-09-04 10:50 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  70. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  71. 2026-09-03 09:02 UTCEG score recompute
  72. 2026-09-03 09:02 UTCGHSA enrichmentGHSA-rjq7-c36f-2246
  73. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  74. 2026-09-02 07:18 UTCEG score recompute
  75. 2026-09-02 07:17 UTCGHSA enrichmentGHSA-rjq7-c36f-2246

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-17548?
CVE-2026-17548 is a medium-severity vulnerability; its CVE record was published on August 25, 2026. Missing authorization in Checkmk <2.5.0p12, <2.4.0p36, <2.3.0p50 and all 2.2.0 versions allows an authenticated user who knows the ID of a background job to view that job's status and results.
When was the CVE record for CVE-2026-17548 published?
The CVE record for CVE-2026-17548 was published on August 25, 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 August 26, 2026; the record at its source may have been updated since.
Is CVE-2026-17548 actively exploited?
CVE-2026-17548 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (10th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-17548?
CVE-2026-17548 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-17548?
No fix for CVE-2026-17548 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 (Checkmk GmbH) lists Checkmk GmbH Checkmk versions 2.5.0 up to but not including 2.5.0p12, 2.4.0 up to but not including 2.4.0p36 and 2.3.0 up to but not including 2.3.0p50 as affected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-17548 are linked in the Vendor Advisories panel on this page.

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