Security readout for executives and security teams
Plain-English summary
A flaw in the Linux bnxt_re RDMA driver can corrupt kernel memory when unusually large page-buffer resources are configured. Successful triggering requires local, low-privileged access according to the supplied CVSS data. Impact could include system compromise or disruption, but the supplied sources do not establish exploitation in the wild.
Executive priority
Treat as a high-priority kernel update for bnxt_re RDMA systems, especially shared compute or infrastructure allowing local untrusted access. Patch through supported distribution channels. Other Linux systems should still be inventoried, but urgency depends on whether the affected driver and resource path are reachable.
Technical view
For non-memory-region resources exceeding 256K PBL entries, bnxt_re incorrectly treats one contiguous Level-2 PDE allocation as multiple pages. Subsequent indexing can access invalid memory and cause kernel memory corruption. The supplied CVSS 3.1 vector is local, low-complexity, low-privilege, no-user-interaction, with high confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is concentrated on affected Linux systems using the bnxt_re RDMA driver and capable of creating the unusually large resources involved. Systems without that driver or relevant RDMA use are less likely exposed. The supplied version data is ambiguous, so distribution-specific package status should control decisions.
Exploitation context
The supplied bundle marks this CVE as absent from KEV and provides no evidence of active exploitation or a public exploit. The required access is local rather than network-based. Practical reachability also appears dependent on bnxt_re hardware, driver use, and allocation of more than 256K PBL entries.
Researcher notes
The record maps the issue to CWE-125, while its description more broadly states invalid memory access and memory corruption. Do not infer a specific exploitation primitive from that wording alone. Exact vulnerable and fixed version boundaries are not clearly represented in the supplied affected-version list; verify stable commits and distribution backports.
Mitigation direction
- Install the vendor-supported kernel package containing the bnxt_re correction.
- Consult the Linux distribution advisory to confirm the fixed package version or backport.
- Prioritize RDMA hosts where untrusted or lower-privileged users can access relevant resources.
- If immediate patching is impossible, restrict affected RDMA functionality after operational review.
Validation and detection
- Inventory running kernel versions, loaded bnxt_re modules, and associated RDMA hardware.
- Map each kernel package to its distribution advisory and backported fix status.
- Confirm the applicable stable-kernel correction is present in deployed source or package metadata.
- After updating, reboot into the corrected kernel and verify the active version.
- Test legitimate large RDMA resource workloads in a controlled environment for stability.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-50208 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/df6fed0a2a1a5e57f033bca40dc316b18e0d0ce6CVE reference, Linux
- https://git.kernel.org/stable/c/de5857fa7bcc9a496a914c7e21390be873109f26CVE reference, Linux
- https://git.kernel.org/stable/c/ea701c1849e7250ea41a4f7493e0a5f136c1d47eCVE reference, Linux
- https://git.kernel.org/stable/c/87cb3b0054e53e0155b630bdf8fb714ded62565fCVE reference, Linux
- https://git.kernel.org/stable/c/daac56dd98e1ba814c878ac0acd482a37f2ab94bCVE reference, Linux
- https://git.kernel.org/stable/c/7988bdbbb85ac85a847baf09879edcd0f70521dcCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlCVE reference, CVE
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.