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CVE-2025-47321VulnerabilityPublished

CVE-2025-47321: Qualcomm Snapdragon · Classic Buffer Overflow

Affects Qualcomm SnapdragonSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.08% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

1. Apply official patches and firmware updates from Qualcomm and device manufacturers as soon as they become available to address the buffer overflow vulnerability. 2. Restrict local access to devices with affected Snapdragon components by enforcing strict access controls, including limiting physical access and securing local user accounts. 3. Implement network segmentation and endpoint security measures to reduce the risk of attackers gaining local access through compromised network nodes or malware. 4. Monitor device logs and network traffic for unusual activity indicative of exploitation attempts, such as unexpected crashes or anomalous packet processing. 5. Employ runtime protections such as Address Space Layout Randomization (ASLR) and Data Execution Prevention (DEP) where supported by the device firmware to mitigate exploitation impact. 6. For organizations deploying IoT or embedded devices with affected chipsets, conduct thorough security assessments and consider compensating controls like device isolation and strict update policies. 7. Educate users and administrators about the risks of local access vulnerabilities and enforce policies to minimize exposure to untrusted local clients or applications.

Description

Memory corruption while copying packets received from unix clients.

References

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