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
50%
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 28× in last 7d / 128× 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 241 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 50.2% 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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