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Fencer Intel
medium 4.3

CVE-2012-4680 json

Directory traversal vulnerability in the XML Server in IOServer before 1.0.19.0, when the Root Directory pathname lacks a trailing \ (backs…

published 2012-08-27 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4605

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.7%
EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits
1
Exploit-DB

Summary

Directory traversal vulnerability in the XML Server in IOServer before 1.0.19.0, when the Root Directory pathname lacks a trailing \ (backslash) character, allows remote attackers to read arbitrary files or list arbitrary directories via a .. (dot dot) in a URI.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-12-258-01 updated cvss 7.8

IOServer OPC Server Multiple Vulnerabilities

  • IOServer OPC Server <=1.0.18.0
    affected: mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Timeline

  1. First public exploit (EDB-20677)
  2. Published

Exploit prediction

2.75% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-20677 IOServer 1.0.18.0 - Directory Traversal webapps, 2012-08-20

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.