CVE-2020-7131Network attack vector

System compromise via UDP maintenance service memory corruption

Published Apr 24, 2020 · Updated Aug 4, 2024

Out-of-bounds write in HPE NonStop maintenance entities allows remote attackers to disrupt or control systems through UDP port 17185. The service listening on that port writes beyond a memory buffer while processing untrusted datagrams, causing disclosure, service interruption, or memory corruption. Reachability requires access to the Maintenance LAN; successful corruption can grant complete system control, while crafted traffic can expose data or interrupt service.

CVSS severity9.0
Critical
EPSS probability1.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Out-of-bounds write in HPE NonStop maintenance entities allows remote attackers to disrupt or control systems through UDP port 17185. The service listening on that port writes beyond a memory buffer while processing untrusted datagrams, causing disclosure, service interruption, or memory corruption. Reachability requires access to the Maintenance LAN; successful corruption can grant complete system control, while crafted traffic can expose data or interrupt service.

The record

CVE
CVE-2020-7131
Published
Apr 24, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1210
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.0NIST NVDAV:N/AC:L/Au:S/C:C/I:C/A:C
9.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo