CVE-2025-39841Disclosure(debian / debian_linux)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix buffer free/clear order in deferred receive path Fix a use-after-free window by correcting the buffer release sequence in the deferred receive path. The code freed the RQ buffer first and only then cleared the context pointer under the lock. Concurrent paths (e.g., ABTS and the repost path) also inspect and release the same pointer under the lock, so the old order could lead to double-free/UAF. Note that the repost path already uses the correct pattern: detach the pointer under the lock, then free it after dropping the lock. The deferred path should do the same.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

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

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified 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 · 2026-07-16: 1Technical Details · 2026-07-16: 107-16
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • BREACHSPIDER@breachspider
    Disclosure

    [CVE Analysis] CVE-2025-39841: Siemens SIMATIC CN 4100 Memory Corruption Chain Threatens Network Communication Integrity https://breachspider.com/intel/2026-07-16-cve-2025-39841-siemens-simatic-cn-4100-memory-corruption-cha #ICS #OTSecurity #SCADA #CriticalInfrastructure

    Post summary

    The post announces a new vulnerability (CVE-2025-39841) affecting Siemens SIMATIC CN 4100, describing it as a memory corruption chain without providing PoC, exploit code, or patch details.

    0000040
    2.3K followersView on X
CPE platform detail6 entries

6 of 6 entries

PartVendorProductVersionTarget SWTarget HW
OSdebiandebian_linux11.0--
OSlinuxlinux_kernel---
OSlinuxlinux_kernel6.17--
OSlinuxlinux_kernel6.17--
OSlinuxlinux_kernel6.17--
OSlinuxlinux_kernel6.17--

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