Security readout for executives and security teams
Plain-English summary
This is a Microsoft Edge (Chromium-based) elevation of privilege issue. A victim likely needs to interact with content, and successful exploitation could cause limited confidentiality, integrity, and availability impact. The source bundle rates it medium at CVSS 6.3 and does not show CISA KEV listing or confirmed exploitation.
Executive priority
Treat as a routine but timely browser security update. It is not evidenced as actively exploited in the supplied sources, but Edge is widely deployed and browser flaws can create user-driven enterprise exposure if patching lags.
Technical view
MSRC describes CVE-2022-26899 as an Edge Chromium-based elevation of privilege vulnerability. The CVSS vector is network-reachable, low complexity, no privileges required, user interaction required, unchanged scope, and low CIA impact. The vector marks exploit maturity as unproven and remediation level as official fix, but the bundle does not name specific fixed versions.
Likely exposure
Exposure is most likely on endpoints where Microsoft Edge (Chromium-based) is installed and not maintained to the applicable Microsoft security update level. The provided affected data only names Microsoft Edge (Chromium-based) and version 1.0.0, so exact enterprise exposure depends on vendor advisory mapping and local browser inventory.
Exploitation context
The provided sources do not support active exploitation. KEV is false, and the CVSS exploit code maturity value is unproven. The user-interaction requirement lowers urgency compared with a wormable server flaw, but browser exposure can still be broad across managed desktops.
Researcher notes
Evidence is limited to CVE and MSRC metadata. The bundle provides CVSS details and an official vendor reference, but no CWE, no technical root cause, no exploit narrative, and no specific fixed build. Avoid assumptions beyond Edge Chromium-based exposure and vendor-guided remediation.
Mitigation direction
- Review the MSRC advisory for the applicable fixed Edge version.
- Update Microsoft Edge through standard browser or endpoint management channels.
- Confirm automatic Edge updates are enabled where policy permits.
- Prioritize shared workstations and high-risk user groups first.
Validation and detection
- Inventory Microsoft Edge Chromium versions across managed endpoints.
- Compare installed versions against the MSRC advisory guidance.
- Check update management telemetry for failed or deferred Edge updates.
- Verify CISA KEV status remains absent before changing urgency.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-26899 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C2.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Edge (Chromium-based) Elevation of Privilege VulnerabilityCVE reference · vendor-advisory
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.