CVE-2022-42306

Local service crash via malformed registration packet

Published Oct 3, 2022 · Updated Aug 3, 2024

NULL-pointer dereference in Veritas NetBackup 8.2 and earlier allows local users to crash pbx_exchange with a crafted registration packet. During registration, pbx_exchange processes malformed packet data that triggers a NULL-pointer exception instead of rejecting the packet. Low-privileged local access is required, and the reported consequence is interruption of pbx_exchange rather than data access or modification.

CVSS severity6.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL-pointer dereference in Veritas NetBackup 8.2 and earlier allows local users to crash pbx_exchange with a crafted registration packet. During registration, pbx_exchange processes malformed packet data that triggers a NULL-pointer exception instead of rejecting the packet. Low-privileged local access is required, and the reported consequence is interruption of pbx_exchange rather than data access or modification.

The record

CVE
CVE-2022-42306
Published
Oct 3, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 3, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5VeritasCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/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.

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No observations available

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

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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