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Fencer Vulns
critical 9.8

CVE-2023-22781 json

Unauthenticated Buffer Overflow Vulnerabilities in Services Accessed by the PAPI Protocol

published 2023-05-08 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26899

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

There are buffer overflow vulnerabilities in multiple underlying services that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's access point management protocol) UDP port (8211). Successful exploitation of these vulnerabilities result in the ability to execute arbitrary code as a privileged user on the underlying operating system.

Patch / fix

  • hp instantos 8.6.0.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-285-02 updated cvss 9.8

Siemens SCALANCE W1750D

  • Siemens SCALANCE W1750D (JP) (6GK5750-2HX01-1AD0) <V8.10.0.6 Siemens SCALANCE W1750D (ROW) (6GK5750-2HX01-1AA0) <V8.10.0.6 Siemens SCALANCE W1750D (USA) (6GK5750-2HX01-1AB0) <V8.10.0.6
    affected: fixed in V8.10.0.6, workaround, mitigation

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

2.07% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Hewlett Packard Enterprise (HPE) Aruba Access Points running InstantOS and ArubaOS 10

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.