CVE-2025-25066

Process memory corruption via unbounded cache parsing

Published Feb 3, 2025 · Updated Feb 12, 2025

Stack-based buffer overflow in ntop nDPI 4.12 and earlier allows local users to corrupt memory by restoring a crafted address-cache file. The ndpi_address_cache_restore function passes unbounded %s conversions to fscanf for attacker-controlled IP and hostname tokens, overflowing fixed-size stack arrays. Reachability requires a consuming process to restore a cache file that a local user can influence; the overwrite can crash that process or corrupt its execution.

CVSS severity8.1
High
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in ntop nDPI 4.12 and earlier allows local users to corrupt memory by restoring a crafted address-cache file. The ndpi_address_cache_restore function passes unbounded %s conversions to fscanf for attacker-controlled IP and hostname tokens, overflowing fixed-size stack arrays. Reachability requires a consuming process to restore a cache file that a local user can influence; the overwrite can crash that process or corrupt its execution.

The record

CVE
CVE-2025-25066
Published
Feb 3, 2025
Updated
Feb 12, 2025
Vendor
ntop
Product
nDPI
Classifications
CWE-121
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.12

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

ntop · nDPIversion=0 <=4.12

Published CVSS scores

8.1MITRE CorporationCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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