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CVE-2025-12341VulnerabilityPublished

CVE-2025-12341: ermig1979 AntiDupl · Link Following

Affects ermig1979 AntiDuplSource CVE Database V5

0

Not known to be exploited · CVSS 8.5 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score
8.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 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 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
ermig1979 AntiDuplAffected
  • =2.3.0
  • =2.3.1
  • =2.3.2
  • =2.3.3
  • =2.3.4
  • =2.3.5
  • =2.3.6
  • =2.3.7
  • =2.3.8
  • =2.3.9
  • =2.3.10
  • =2.3.11
  • =2.3.12
Fixed in–

AI-suggested

To mitigate CVE-2025-12341, European organizations should first restrict local access to systems running AntiDupl to trusted users only and enforce the principle of least privilege to minimize the risk from low-privilege accounts. Implement strict access controls on directories and files used by AntiDupl to prevent unauthorized symbolic link creation or manipulation. Employ application whitelisting and endpoint detection to monitor and block suspicious behaviors related to AntiDupl.NET.WinForms.exe. Regularly audit local user accounts and remove unnecessary privileges or dormant accounts. Deploy host-based intrusion detection systems (HIDS) to detect anomalous file system activities indicative of link-following exploitation. Maintain comprehensive logging and monitor for unusual access patterns. Finally, prepare incident response plans that include this vulnerability scenario and educate local users about the risks of executing untrusted files or scripts that could exploit local vulnerabilities.

Description

A vulnerability was detected in ermig1979 AntiDupl up to 2.3.12. Impacted is an unknown function of the file AntiDupl.NET.WinForms.exe of the component Delete Duplicate Image Handler. The manipulation results in link following. The attack is only possible with local access. The vendor was contacted early about this disclosure but did not respond in any way.

References

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