How severe is CVE-2023-31276?

CVE-2023-31276 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-31276 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-31276?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-31276 have an EU (EUVD) identifier?

Yes. CVE-2023-31276 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35590.

When was CVE-2023-31276 published?

CVE-2023-31276 was published on 2025-02-12 and last updated on 2026-06-17.

CVE-2023-31276

CVE-2023-31276 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. 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-122.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v4: 8.4
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-35590
Weakness: CWE-122
Published: 2025-02-12
Last modified: 2026-06-17

Description

Heap-based buffer overflow in BMC Firmware for the Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, before version 02.01.0017 and Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP before version R01.01.0009 may allow a privileged user to enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2023-31276?: Heap-based buffer overflow in BMC Firmware for the Intel(R) Server Board S2600WF, Intel(R) Server Board S2600ST, Intel(R) Server Board S2600BP, before version 02.01.0017 and Intel(R) Server Board M50CYP and Intel(R) Server Board D50TNP before version R01.01.0009 may allow a privileged user to enable escalation of privilege via local access.
How severe is CVE-2023-31276?: CVE-2023-31276 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-31276 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-31276?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-31276 have an EU (EUVD) identifier?: Yes. CVE-2023-31276 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-35590.
When was CVE-2023-31276 published?: CVE-2023-31276 was published on 2025-02-12 and last updated on 2026-06-17.

References

https://intel.com/content/www/us/en/security-center/advisory/intel-sa-00990.html

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities

CVE-2026-46752 — Critical (CVSS 10.0): Redis Lua HEAP overflow in cjson library vulnerability in Apache Kvrocks. This issue affects Apache Kvrocks: from…
CVE-2026-24822 — Critical (CVSS 10.0): Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is…
CVE-2025-23123 — Critical (CVSS 10.0): A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a…
CVE-2022-34819 — Critical (CVSS 10.0): A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions <…
CVE-2026-44050 — Critical (CVSS 9.9): A heap-based buffer overflow in the CNID daemon comm_rcv() function in Netatalk 2.0.0 through 4.4.2 allows a remote…
CVE-2026-49841 — Critical (CVSS 9.8): FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to…

Browse all CWE-122 (Heap-based Buffer Overflow) vulnerabilities →