CVE-2026-16527: pcp
CVSS: 7.3v3.1HighAwaiting analysis
AliasesUBUNTU-CVE-2026-16527DEBIAN-CVE-2026-16527
Published 30-07-2026Last modified 01-10-2026
Vulnerability summary
CVE-2026-16527 is a high (CVSS 7.3) vulnerability in pcp. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.2% of scored vulnerabilities.
CVSS score
7.3/10
010
High · v3.1 (CVE.org)EPSS score
0.59%
0%100%
Low · +0.09 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 20 · Related 10OPENSUSE-SU-2026:11490-1OPENSUSE-SU-2026:21636-1RHSA-2026:55560RHSA-2026:55617RHSA-2026:55740RHSA-2026:72272RHSA-2026:72273RHSA-2026:72593RHSA-2026:72594RHSA-2026:73767RHSA-2026:74612RHSA-2026:74613SUSE-SU-2026:23064-1SUSE-SU-2026:23174-1SUSE-SU-2026:23277-1SUSE-SU-2026:23316-1SUSE-SU-2026:3505-1SUSE-SU-2026:3506-1SUSE-SU-2026:3507-1SUSE-SU-2026:3508-1
Timeline
- 30-07-2026PublishedVulnerability first disclosed.
- 01-10-2026Last modifiedVulnerability information updated.
Description
An unauthenticated remote attacker can bypass access controls by sending crafted requests to the PCP pmproxy /store endpoint. This allows the attacker to overwrite any PMDA metric, leading to arbitrary code execution and system takeover.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 7.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- OSV · DebianEcosystem advisory · calculated7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- NVDNIST7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
+0.09 pp
From 0.50% on 20-09-2026
20-09-202620-10-2026
EPSS score0.59%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-306Missing Authentication for Critical FunctionThe product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
- CWE-284Improper Access ControlThe product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Affected systems
Debian1 product
- pcpAll versions (No fix recorded)
Ubuntu1 product
- pcpAll versions (No fix recorded)
2 vendors · 2 products
