CVE-2026-16529

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

A signed integer overflow in the PCP __pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet reads.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
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

2506032 – (CVE-2026-16529) CVE-2026-16529 PCP: PCP: Denial of Service due to signed integer overflow

https://bugzilla.redhat.com/show_bug.cgi?id=2506032
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-16529

Vendor Advisories for CVE-2026-16529(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-0:7.0.3-5.el10_22026-08-17redhat
redhatpcp-0:6.3.7-8.el9_8.42026-08-17redhat

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 35× in last 7d / 148× 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 226 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-16529?
CVE-2026-16529 is a high vulnerability published on July 30, 2026. A signed integer overflow in the PCP pmGetPDU() function can be exploited via crafted network packets during PDU processing or SASL negotiation. This permanently blinds the affected daemon, resulting in a total denial of service (DoS) for subsequent packet reads.
When was CVE-2026-16529 disclosed?
CVE-2026-16529 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-2026-16529 actively exploited?
CVE-2026-16529 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 70.5% of all scored CVEs.
What is the CVSS score of CVE-2026-16529?
CVE-2026-16529 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-16529?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16529, 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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