CVE-2026-16524: 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 ar
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-16524
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2026-165241.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 62% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-16524 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for A command injection
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
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- unknownCVE-2026-38710: TR1200 v2.4.15 and TR3000 v2.4.21 were discovered to contain a command injection vulnerability…nvd · 2026-07-31
- criticalCVE-2026-4978: Improper neutralization of special elements used in an SQL command ('SQL injection') vulnerabil…nvd · 2026-07-30
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