Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-426.
Summary
Opera before 57.0.3098.106 is vulnerable to a DLL Search Order hijacking attack where an attacker can send a ZIP archive composed of an HTML page along with a malicious DLL to the target. Once the document is opened, it may allow the attacker to take full control of the system from any location within the system. The issue lies in the loading of the shcore.dll and dcomp.dll files: these files are being searched for by the program in the same system-wide directory where the HTML file is executed.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18913
- 2026-10-03 Alias added: GHSA-x7p4-c67j-9fvf
References
More Opera Browser vulnerabilities
- TI-2015-03381 The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server… CVSS 3.1LOW 3.7
- TI-2010-01304 Integer overflow in Opera 10.10 through 10.50 allows remote attackers to execute… CVSS 2.0HIGH 10.0
- TI-2011-02999 The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft… CVSS 2.0MEDIUM 4.3
- TI-2011-02290 Opera before 11.11 does not properly implement FRAMESET elements, which allows remote… CVSS 2.0HIGH 10.0
- TI-2007-05262 Unspecified vulnerability in Adobe Flash Player 9.0.47.0 and earlier, when running on… CVSS 2.0HIGH 10.0
- TI-2007-00121 Heap-based buffer overflow in Opera 9.02 allows remote attackers to execute arbitrary… CVSS 2.0HIGH 9.3
Sources
- CVE-2018-18913 · CVE Program
- CVE-2018-18913 · NVD
- FIRST EPSS
- GHSA-x7p4-c67j-9fvf · GitHub Advisory Database · CC BY 4.0
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