CVE-2024-23911

Out-of-bounds read vulnerability caused by improper checking of the option length values in IPv6 NDP packets exists in Cente middleware TCP/IP Network Series, which may allow an unauthenticated attacker to stop the device operations by sending a specially crafted packet.

Published: 2024-04-15 Last update: 2025-06-30 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-23911 is rated Moderate Risk (45.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.22%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-23911

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-07-01 0.15% 0.22% +0.07%
2 2025-05-24 0.30% 0.15% -0.15%
3 2025-05-13 — 0.30% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-23911

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-23911

Affected software / configurations for CVE-2024-23911

Vendor Product Version Raw CPE
nxtech cente_ipv6 <= 1.51 cpe:2.3:a:nxtech:cente_ipv6:*:*:*:*:*:*:*:*
nxtech cente_ipv6_snmpv2 <= 2.30 cpe:2.3:a:nxtech:cente_ipv6_snmpv2:*:*:*:*:*:*:*:*
nxtech cente_ipv6_snmpv3 <= 2.30 cpe:2.3:a:nxtech:cente_ipv6_snmpv3:*:*:*:*:*:*:*:*

References for CVE-2024-23911

URL Tags
https://jvn.jp/en/vu/JVNVU94016877/ Third Party Advisory
https://www.cente.jp/obstacle/4960/ Vendor Advisory
cvelogic Threat Intelligence