Skip to main content
VulnerabilityPublished Updated

CVE-2026-16529: Red Hat Enterprise Linux 10 · Integer Overflow or Wraparound

Affects Red Hat Enterprise Linux 10Source CVE Database V5

0
Compare

Not known to be exploited · CVSS 7.5 High.

Data as of 29 Oct 2026, 10:37 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10pcpAffected–Fixed in–
Red Hat Enterprise Linux 10.0 Extended Update SupportpcpAffected–Fixed in–
Red Hat Enterprise Linux 8pcpAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportpcpAffected–Fixed in–
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnpcpAffected–Fixed in–
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportpcpAffected–Fixed in–

AI-suggested

Red Hat advises ensuring that the PCP services pmlogger and pmcd are not exposed to untrusted networks. By default, these services listen only on the loopback interface, which prevents remote exploitation. If the default network bindings have been altered, revert them to restrict access to localhost. For pmlogger, ensure the PMLOGGER_LOCAL environment variable is set. If remote access is not required, implement firewall rules to block external connections to TCP ports 4330 (pmlogger) and 44321 (pmcd). Restart affected PCP services after making configuration changes.

Description

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.

References

Community reviews

Loading reviews…