CVE-2025-37947PoC(debian / debian_linux)

LOWCVSS 7.8 · HIGH

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

  • Hunt for exploitation attempts and persistence artifacts
  • Increase monitoring for publicly documented tradecraft
  • Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds stream writes by validating *pos ksmbd_vfs_stream_write() did not validate whether the write offset (*pos) was within the bounds of the existing stream data length (v_len). If *pos was greater than or equal to v_len, this could lead to an out-of-bounds memory write. This patch adds a check to ensure *pos is less than v_len before proceeding. If the condition fails, -EINVAL is returned.

2.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • debian_linux
  • linux_kernel

Threat summary

  • Public PoC is present in monitored signal
  • 1 mentions across 1 observed day

What's happening

  • PoC mentioned or linked in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Products
debian_linuxlinux_kernel

2 versions affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-02-02: 1PoC Mentioned / Linked · 2026-02-02: 1Technical Details · 2026-02-02: 102-02
Signal classification1 categories
PoC
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • reverseame@reverseame
    PoC

    ksmbd - Exploiting CVE-2025-37947 (3/3) #CVE202537947 #ksmbd #OOBWrite #PrivilegeEscalation #LinuxKernel https://blog.doyensec.com/2025/10/08/ksmbd-3.html

    Post summary

    The tweet announces a Proof‑of‑Concept exploitation of CVE‑2025‑37947 involving an out‑of‑bounds write in the Linux kernel that enables privilege escalation, with no mention of active attacks, patches, or false positives.

    0601681.5K
    21.6K followersView on X
CPE platform detail7 entries

7 of 7 entries

PartVendorProductVersionTarget SWTarget HW
OSdebiandebian_linux11.0--
OSlinuxlinux_kernel---
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--
OSlinuxlinux_kernel6.15--

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