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NVD / CVE Program· CNA redhat

CVE-2026-16530: Pcp: pcp: remote denial of service and information leakage

Noroxi assessment

Priority: Monitor (action score 26/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.48% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: pcp (Debian:14) 7.2.1-2; pcp (openSUSE:Leap 16.0) 6.2.0-160000.4.1; pcp (openSUSE:Tumbleweed) 6.3.8-3.1.

Low priority for now. Upgrade to pcp (Debian:14) 7.2.1-2; pcp (openSUSE:Leap 16.0) 6.2.0-160000.4.1; pcp (openSUSE:Tumbleweed) 6.3.8-3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A flaw was found in the PCP (Performance Co-Pilot) `pmproxy` service. A remote attacker can exploit a vulnerability in the `pmLogLoadInDom()` function by sending a specially crafted request. This bypasses a critical bounds check, which can lead to the `pmproxy` service crashing, causing a Denial of Service (DoS). Additionally, this flaw may enable the leakage of sensitive information from the system's memory.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Jul 30, 2026
Updated
Nov 5, 2026
EPSS
0.4% · 42th percentile

Report tools

JSON

Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · redhat
6.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-16530

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Red Hat Enterprise Linux 10

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 6

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 7

    • all versionsunknown

  • Red Hat Red Hat Enterprise Linux 8

    • all versionsaffected

  • Red Hat Red Hat Enterprise Linux 9

    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 4

    • all versionsaffected

  • Red Hat Red Hat OpenShift Container Platform 5

    • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12pcpfrom 0—
Debian:14pcpbefore 7.2.1-27.2.1-2
openSUSE:Leap 16.0pcpbefore 6.2.0-160000.4.16.2.0-160000.4.1
openSUSE:Tumbleweedpcpbefore 6.3.8-3.16.3.8-3.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSpcpbefore 6.2.0-150400.5.15.16.2.0-150400.5.15.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSpcpbefore 6.2.0-150500.8.9.16.2.0-150500.8.9.1
SUSE:Linux Enterprise Module for Development Tools 15 SP7pcpbefore 6.2.0-150600.3.12.16.2.0-150600.3.12.1
SUSE:Linux Enterprise Server 12 SP5-LTSSpcpbefore 6.2.0-6.32.16.2.0-6.32.1
SUSE:Linux Micro 6.0pcpbefore 6.2.0-2.16.2.0-2.1
SUSE:Linux Micro 6.1pcpbefore 6.2.0-slfo.1.1_6.16.2.0-slfo.1.1_6.1
SUSE:Linux Micro 6.2pcpbefore 6.2.0-160000.4.16.2.0-160000.4.1

Same product

red hat: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-10230Samba: command injection in wins server hook script
    52Plan
  • CVE-2026-4631Cockpit: cockpit: unauthenticated remote code execution due to ssh command-line argument injection
    44Plan
  • CVE-2026-76578Ipa: freeipa: freeipa: unauthenticated ldap client can obtain administrator credentials via the self-managed-token aci
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-16527Jul 30, 2026 · Pcp: pcp pmproxy: unauthenticated access to /store endpoint allows bypassing pmcd access rules
    29Monitor
  • ← EarlierCVE-2026-16529Jul 30, 2026 · Pcp: pcp: denial of service due to signed integer overflow
    30Monitor
  • Later →CVE-2026-16531Jul 30, 2026 · Pcp: pcp: arbitrary file creation via path traversal in pmproxy logger servlet
    21Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:pcp7.2.1-2 · Debian:14Package registry (OSV)
opensuse:pcp6.3.8-3.1 · openSUSE:TumbleweedPackage registry (OSV)
suse:pcp6.2.0-2.1 · SUSE:Linux Micro 6.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-49796409 days apartLibxml: type confusion leads to denial of service (dos)
    36Monitor
  • CVE-2026-3400398 days apartXorg: xwayland: x.org x server: information exposure and denial of service via out-of-bounds memory access
    31Monitor
  • CVE-2026-8523447 days apartTftp: tftp-hpa: denial of service due to out-of-bounds read/write in remap engine
    30Monitor
  • CVE-2026-11548485 days apartOpen-iscsi: open-iscsi: dhcpv4 option parser heap out-of-bounds read in iscsiuio parse_msg
    30Monitor
  • CVE-2025-11021307 days apartLibsoup: out-of-bounds read in cookie date handling of libsoup http library
    30Monitor
  • CVE-2025-32906472 days apartLibsoup: out of bounds reads in soup_headers_parse_request()
    30Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records