How severe is CVE-2022-42306?

CVE-2022-42306 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-42306 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-42306?

CVE-2022-42306 affects Veritas Netbackup. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-42306?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-42306 published?

CVE-2022-42306 was published on 2022-10-03 and last updated on 2026-06-17.

CVE-2022-42306

CVE-2022-42306 is a medium-severity vulnerability in Veritas Netbackup with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Veritas Netbackup
Published: 2022-10-03
Last modified: 2026-06-17

Description

An issue was discovered in Veritas NetBackup through 8.2 and related Veritas products. An attacker with local access can send a crafted packet to pbx_exchange during registration and cause a NULL pointer exception, effectively crashing the pbx_exchange process.

Frequently asked questions

What is CVE-2022-42306?: An issue was discovered in Veritas NetBackup through 8.2 and related Veritas products. An attacker with local access can send a crafted packet to pbx_exchange during registration and cause a NULL pointer exception, effectively crashing the pbx_exchange process.
How severe is CVE-2022-42306?: CVE-2022-42306 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-42306 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-42306?: CVE-2022-42306 affects Veritas Netbackup. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-42306?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-42306 published?: CVE-2022-42306 was published on 2022-10-03 and last updated on 2026-06-17.

References

https://www.veritas.com/content/support/en_US/security/VTS22-010#M1

Affected products (1)

cpe:2.3:a:veritas:netbackup:*:*:*:*:*:*:*:*

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