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CVE-2025-5296VulnerabilityPublished

CVE-2025-5296: Schneider Electric SESU · Link Following

Affects Schneider Electric SESUSource CVE Database V5

0

Not known to be exploited · CVSS 7.0 High : upgrade to 3.0.12 soon.

Data as of 26 Oct 2026, 07:57 UTC

CVSS 4.0 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.0.12
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Aug 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 2026-10-26.

What to do

Upgrade Schneider Electric SESU to 3.0.12.

Affected software

ProductAffectedFixed in
Schneider Electric SESUAffected
  • <3.0.12
Fixed in
  • 3.0.12

AI-suggested

To mitigate CVE-2025-5296, European organizations should prioritize upgrading Schneider Electric SESU installations to version 3.0.12 or later as soon as the patch becomes available. Until then, organizations should implement strict access controls on the SESU installation directories to prevent unauthorized users from creating or modifying symbolic links. Employing file system monitoring tools to detect unusual link creation or modification activities can provide early warning of exploitation attempts. Additionally, running SESU processes with the least privileges necessary and isolating them from other user accounts can reduce the attack surface. Organizations should also conduct regular audits of file system permissions and symbolic link usage within critical application folders. Where possible, leveraging application whitelisting and integrity verification mechanisms can help detect and prevent unauthorized file modifications. Finally, educating system administrators and users about the risks of symbolic link manipulation and enforcing strong endpoint security policies will further reduce exploitation likelihood.

Description

CWE-59: Improper Link Resolution Before File Access ('Link Following') vulnerability exists that could cause arbitrary data to be written to protected locations, potentially leading to escalation of privilege, arbitrary file corruption, exposure of application and system information or persistent denial of service when a low-privileged attacker tampers with the installation folder.

References

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