CVE-2026-16524

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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
Severity78% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
49%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 21, 2026

Advisory Details (2)

Auto-updated Jul 30, 2026
Patch available. Sources: redhat.
redhat

2506023 – (CVE-2026-16524) CVE-2026-16524 PCP: PCP linux_sockets PMDA: Arbitrary Command Execution via Command Injection

https://bugzilla.redhat.com/show_bug.cgi?id=2506023
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16524

Vendor Advisories for CVE-2026-16524(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpcp-0:5.3.7-22.el8_10.52026-08-17redhat
redhatpcp-0:6.3.7-8.el9_8.42026-08-17redhat
redhatpcp-0:7.0.3-5.el10_22026-08-17redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pcp5.2.6-1 ... 7.2.0-1 (44 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pcp6.0.3-1.1 ... 7.2.1-2 (31 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pcp6.3.8-1 ... 7.2.1-2 (15 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pcp6.3.8-1 ... 7.2.0-1 (14 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 33× in last 7d / 142× 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 218 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-16524?
CVE-2026-16524 is a high vulnerability published on July 30, 2026. A command injection flaw in PCP's linux_sockets PMDA allows malicious shell metacharacters via the network.persocket.filter metric. This failed validation lets attackers execute arbitrary commands as the PMDA user when metrics refresh.
When was CVE-2026-16524 disclosed?
CVE-2026-16524 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16524 actively exploited?
CVE-2026-16524 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 50.7% of all scored CVEs.
What is the CVSS score of CVE-2026-16524?
CVE-2026-16524 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-16524?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16524, 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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