Security readout for executives and security teams
Plain-English summary
CVE-2010-2455 describes an Opera browser address-bar spoofing issue. A crafted HTML page might cause the displayed address to mislead users before the new document content is retrieved. The business concern is phishing and trust confusion, not direct server compromise. The supplied sources do not name affected versions, fixes, or active exploitation.
Executive priority
Treat this as a legacy-browser hygiene issue unless Opera is still deployed. Prioritize confirming exposure; escalate remediation if unsupported Opera versions are found in production or user workstations.
Technical view
The CVE states Opera mishandles address-bar state during the interval between a URL-open request and retrieval of the new document content. This might permit remote spoofing using crafted HTML. It is related to CVE-2010-1206. The bundle provides no CVSS, CWE, CPEs, affected version range, or vendor remediation detail.
Likely exposure
Exposure is most plausible where legacy Opera installations are still present. The source bundle does not identify affected versions or platforms, so vulnerability managers should verify actual Opera usage rather than assume broad exposure.
Exploitation context
No KEV listing is present, and the provided sources do not state active exploitation. The described impact is spoofing that could support phishing or user deception through address-bar confusion.
Researcher notes
Evidence is limited. The CVE record and IBM X-Force reference identify an Opera HTML spoofing issue, with a Mozilla Bugzilla cross-reference. The bundle does not provide exploit details, affected versions, patch identifiers, or severity metrics.
Mitigation direction
- Inventory endpoints for Opera browser installations.
- Remove or upgrade unsupported Opera installations after checking vendor guidance.
- Prefer supported browsers with current security update channels.
- Restrict legacy browser execution where there is no business need.
- Reinforce phishing guidance for suspicious address-bar behavior.
Validation and detection
- Confirm whether Opera exists on managed endpoints.
- Identify installed Opera versions and support status.
- Check vendor or trusted vulnerability records for remediation guidance.
- Review phishing reports for address-bar mismatch indicators.
- Verify endpoint controls block unauthorized legacy browsers.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2010-2455 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.mozilla.org/show_bug.cgi?id=556957CVE reference · x_refsource_MISC
- opera-html-spoofing(59831)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.