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CVE-2023-4977

17
FAUCET Score

CVE-2023-4977 is a code injection vulnerability affecting LibreNMS versions prior to 23.9.0. It carries a CVSS score of 5.4 (MEDIUM), indicating a low-complexity attack that can be executed remotely by an authenticated user, potentially leading to limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 23.9.0CPE matchmatch criteria
cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.3HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
3.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 46th percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: librenms/librenmsFixed in: 23.9.0
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-57m2-mpc7-gwgxmedium

LibreNMS Code Injection vulnerability

Sep 15, 2023

References

github.com / librenms/librenms/commit/1194934d31c795a3f6877a96ffaa34b1f475bdd0
Patch
huntr.dev / bounties/3db8a1a4-ca2d-45df-be18-a959ebf82fbc
ExploitPatchThird Party Advisory