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CVE-2024-43388

26
FAUCET Score

CVE-2024-43388 describes an improper input validation vulnerability in Phoenix Contact products, allowing a low-privileged remote attacker with write permissions to reconfigure the SNMP service. With a CVSS score of 8.8 (HIGH), this vulnerability presents a significant risk, enabling high impact to confidentiality, integrity, and availability with low attack complexity and no user interaction required. Despite its severity, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.9.3CPE matchmatch criteria
cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:*
< 8.9.3CPE matchmatch criteria
cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_vpn_firmware:*:*:*:*:*:*:*:*
< 8.9.3CPE matchmatch criteria
cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_4g_att_vpn_firmware:*:*:*:*:*:*:*:*
< 8.9.3CPE matchmatch criteria
cpe:2.3:o:phoenixcontact:tc_mguard_rs4000_3g_vpn_firmware:*:*:*:*:*:*:*:*
< 8.9.3CPE matchmatch criteria
cpe:2.3:o:phoenixcontact:tc_mguard_rs2000_4g_vzw_vpn_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.56%
Probability of exploitation in next 30 days
EPSS Percentile
43.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0056 is in the 33rd percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cert.vde.com / en/advisories/VDE-2024-039
Third Party Advisory