CVE-2026-16529: Red Hat Enterprise Linux 10

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

  • Red Hat Red Hat Enterprise Linux 10: before 0:7.0.3-5.el10_2 (fixed in 0:7.0.3-5.el10_2)
  • Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support: before 0:6.3.7-1.el10_0.1 (fixed in 0:6.3.7-1.el10_0.1)
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8: before 0:5.3.7-22.el8_10.5 (fixed in 0:5.3.7-22.el8_10.5)
  • Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: before 0:5.2.5-8.el8_4.1 (fixed in 0:5.2.5-8.el8_4.1)
  • Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On: before 0:5.2.5-8.el8_4.1 (fixed in 0:5.2.5-8.el8_4.1)
  • Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: before 0:5.3.5-10.el8_6.1 (fixed in 0:5.3.5-10.el8_6.1)
  • Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On: before 0:5.3.5-10.el8_6.1 (fixed in 0:5.3.5-10.el8_6.1)
  • Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service: before 0:5.3.7-19.el8_8.1 (fixed in 0:5.3.7-19.el8_8.1)
  • Red Hat Red Hat Enterprise Linux 8.8 Update Services For SAP Solutions: before 0:5.3.7-19.el8_8.1 (fixed in 0:5.3.7-19.el8_8.1)
  • Red Hat Red Hat Enterprise Linux 9: before 0:6.3.7-8.el9_8.4 (fixed in 0:6.3.7-8.el9_8.4)
  • Red Hat Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions: before 0:6.0.1-8.el9_2.2 (fixed in 0:6.0.1-8.el9_2.2)
  • Red Hat Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions: before 0:6.2.0-5.el9_4.2 (fixed in 0:6.2.0-5.el9_4.2)
  • Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support: before 0:6.3.7-1.el9_6.1 (fixed in 0:6.3.7-1.el9_6.1)
  • Red Hat Red Hat Openshift Container Platform 4

Published 2026-07-30. Last modified 2026-10-02.