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CVE-2024-33881

16
FAUCET Score

CVE-2024-33881 is a medium-severity vulnerability affecting VirtoSoftware Virto Bulk File Download 5.5.44 for SharePoint 2019, allowing an NTLMv2 hash leak. An unauthenticated attacker can exploit this by providing a crafted UNC share pathname to the Virto.SharePoint.FileDownloader/Api/Download.ashx isCompleted method, leading to the disclosure of sensitive NTLMv2 hashes. The CVSS score is 5.3, indicating a network-based attack with low impact on confidentiality and no impact on integrity or availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.5.44CPE matchmatch criteria
cpe:2.3:a:virtosoftware:sharepoint_bulk_file_download:5.5.44:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.47%
Probability of exploitation in next 30 days
EPSS Percentile
38.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0047 is in the 24th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

docs.virtosoftware.com / v/virto-security-frequently-asked-questions-faq
Product
download.virtosoftware.com / Manuals/nu_ncsc_virto_one_bulk_file_download_v5.4.4_pt_disclosure.pdf
Product