How severe is CVE-2023-38549?

CVE-2023-38549 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-38549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38549?

CVE-2023-38549 primarily affects Veeam One. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-38549?

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

When was CVE-2023-38549 published?

CVE-2023-38549 was published on 2023-11-07 and last updated on 2026-06-17.

CVE-2023-38549

CVE-2023-38549 is a medium-severity vulnerability in Veeam One with a CVSS 3.x base score of 5.4. Its EPSS exploit-prediction score of 19% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 19% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Veeam One
Published: 2023-11-07
Last modified: 2026-06-17

Description

A vulnerability in Veeam ONE allows an unprivileged user who has access to the Veeam ONE Web Client the ability to acquire the NTLM hash of the account used by the Veeam ONE Reporting Service. Note: The criticality of this vulnerability is reduced as it requires interaction by a user with the Veeam ONE Administrator role.

Frequently asked questions

What is CVE-2023-38549?: A vulnerability in Veeam ONE allows an unprivileged user who has access to the Veeam ONE Web Client the ability to acquire the NTLM hash of the account used by the Veeam ONE Reporting Service. Note: The criticality of this vulnerability is reduced as it requires interaction by a user with the Veeam ONE Administrator role.
How severe is CVE-2023-38549?: CVE-2023-38549 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-38549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 19% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38549?: CVE-2023-38549 primarily affects Veeam One. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-38549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-38549 published?: CVE-2023-38549 was published on 2023-11-07 and last updated on 2026-06-17.

References

https://www.veeam.com/kb4508

Affected products (4)

cpe:2.3:a:veeam:one:11.0.0.1379:*:*:*:*:*:*:*
cpe:2.3:a:veeam:one:11.0.1.1880:*:*:*:*:*:*:*
cpe:2.3:a:veeam:one:12.0.0.2498:*:*:*:*:*:*:*
cpe:2.3:a:veeam:one:12.0.1.2591:*:*:*:*:*:*:*

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