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CVE-2024-39677

28
FAUCET Score

CVE-2024-39677 is a critical SQL injection vulnerability affecting NHibernate, an object-relational mapper for .NET, specifically in versions prior to 5.4.9 and 5.5.2. This flaw allows unauthenticated attackers to execute arbitrary SQL commands with high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code, or significant community discussion has been observed, its CVSS score of 9.8 and FAUCET Risk Score of 79/100 highlight its severe potential. Organizations using affected NHibernate versions should prioritize patching to mitigate this risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.4.9CPE matchmatch criteria
cpe:2.3:a:nhibernate:nhibernate-core:*:*:*:*:*:*:*:*
>= 5.5.0, < 5.5.2CPE matchmatch criteria
cpe:2.3:a:nhibernate:nhibernate-core:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0058 is in the 24th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
nugetpatch availablevia ghsa
Product: NHibernateFixed in: 5.4.9
nugetpatch availablevia ghsa
Product: NHibernateFixed in: 5.5.2

Vendor Advisories (1)

nugetGHSA-fg4q-ccq8-3r5qhigh

NHibernate SQL injection vulnerability in discriminator mappings, static fields referenced in HQL, and some utilities

Jul 8, 2024

References

github.com / nhibernate/nhibernate-core/commit/b4a69d1a5ff5744312478d70308329af496e4ba9
Patch
github.com / nhibernate/nhibernate-core/issues/3516
Issue Tracking
github.com / nhibernate/nhibernate-core/pull/3517
Issue Tracking
github.com / nhibernate/nhibernate-core/pull/3547
Issue TrackingPatch
github.com / nhibernate/nhibernate-core/security/advisories/GHSA-fg4q-ccq8-3r5q
Vendor Advisory