PatchTheCVECVE-2026-57991: Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an un
CVE-2026-57991 is a high-severity flaw (CVSS 7.4) affecting edge chromium. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Why this priority
- High severity
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.4 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 1.0% (top 36%) |
| CISA exploited list | No |
| Weakness | CWE-59 |
| Published | 2026-07-03 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-57991?
edge chromium: upgrade to 150.0.4078.48. Exact commands for each OS are on this page.
Is CVE-2026-57991 being exploited?
CVE-2026-57991 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-57991 affect?
CVE-2026-57991 affects edge chromium. Severity is high (CVSS 7.4). Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
How urgent is CVE-2026-57991?
Priority 47/100. High severity; On your watchlist
Software pages
Microsoft Edge vulnerabilities · Chromium vulnerabilities
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