No exploitation reportedFix available

CVE-2023-38549

No exploitation reported by the sources we read.

Published2023-11-07
WeaknessCWE-79

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2023-11-0707:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-38549?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-38549?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Veeam one

Branch	Affected	Fixed in	Source
11.0	= 11.0.0.1379	no fix published	NVD
11.0	= 11.0.1.1880	no fix published	NVD
12.0	= 12.0.0.2498	no fix published	NVD
12.0	= 12.0.1.2591	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

www.veeam.comPatch · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-09-04
OpenCVESSVC decisionnone—
NVDCVSS 3.15.4read 2026-10-23
CNACVSS 3.04.5read 2026-10-23
NVDweakness (CWE)CWE-79read 2026-10-23
FIRST EPSSEPSS score19.1 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Published: 2023-11-07
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-38549?

Is CVE-2023-38549 actively exploited?

Active exploitation of CVE-2023-38549 has not been confirmed. Its EPSS score was 19.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-38549?

CVE-2023-38549 has a CVSS v3 base score of 5.4 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

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