How severe is CVE-2024-50956?

CVE-2024-50956 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-50956 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-50956?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-50956 have an EU (EUVD) identifier?

Yes. CVE-2024-50956 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-45120.

When was CVE-2024-50956 published?

CVE-2024-50956 was published on 2024-11-13 and last updated on 2026-06-17.

CVE-2024-50956

CVE-2024-50956 is a medium-severity vulnerability with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-45120
Weakness: CWE-120
Published: 2024-11-13
Last modified: 2026-06-17

Description

A buffer overflow in the RecvSocketData function of Inovance HCPLC_AM401-CPU1608TPTN 21.38.0.0, HCPLC_AM402-CPU1608TPTN 41.38.0.0, and HCPLC_AM403-CPU1608TN 81.38.0.0 allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted Modbus message.

Frequently asked questions

What is CVE-2024-50956?: A buffer overflow in the RecvSocketData function of Inovance HCPLC_AM401-CPU1608TPTN 21.38.0.0, HCPLC_AM402-CPU1608TPTN 41.38.0.0, and HCPLC_AM403-CPU1608TN 81.38.0.0 allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted Modbus message.
How severe is CVE-2024-50956?: CVE-2024-50956 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-50956 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-50956?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-50956 have an EU (EUVD) identifier?: Yes. CVE-2024-50956 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-45120.
When was CVE-2024-50956 published?: CVE-2024-50956 was published on 2024-11-13 and last updated on 2026-06-17.

References

https://github.com/Curator-Kim/Vulnerability-mining/blob/master/INOVANCE%20AM400%20Series%20Modbus%20buffer%20overflow/INOVANCE%20AM400%20Series%20Modbus%20buffer%20overflow.md

Other CWE-120 (Classic Buffer Overflow) vulnerabilities

CVE-2025-48611 — Critical (CVSS 10.0): In DeviceId of DeviceId.java, there is a possible desync in persistence due to a missing bounds check. This could lead…
CVE-2026-24823 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in FASTSHIFT…
CVE-2026-24810 — Critical (CVSS 10.0): Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in rethinkdb (src/cjson modules).…
CVE-2026-24800 — Critical (CVSS 10.0): Out-of-bounds Write, Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in tildearrow…
CVE-2025-9962 — Critical (CVSS 10.0): A buffer overflow vulnerability in Novakon P series allows attackers to gain root permission without prior…
CVE-2010-10016 — Critical (CVSS 10.0): BS.Player version 2.57 (build 1051) contains a vulnerability in its playlist import functionality. When processing .m3u…

Browse all CWE-120 (Classic Buffer Overflow) vulnerabilities →