CVE-2026-57991: Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

highCVSS 7.4CVE-2026-57991

Improper link resolution before file access ('link following') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.

Details

Source: NVD Recent CVEs (US · database · site)
Severity: high — CVSS 7.4
Published: 2026-07-03
Last updated: 2026-07-07
Exploitation: Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-57991

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-579910.74% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-57991	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEW] [high] Microsoft Edge: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Microsoft Edge (July 7, 2026)cert-fr-avis
highCVE-2026-57991: Microsoft Edge (Chromium-based) Information Disclosure Vulnerabilitymsrc

Recent advisories for Improper link resolution

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

unknownCVE-2026-14904 - Improper Link Resolution in Auth.GetUserPrivateKey in AWS Research and Engineering Studioaws · 2026-07-07
highCVE-2026-41121: Dell Device Management Agent, versions prior to DDMA 26.05, contain an Improper Link Resolutio…nvd · 2026-07-01
criticalexploitedCVE-2020-36193: PEAR Archive_Tar Improper Link Resolution Vulnerabilitycisa-kev · 2022-08-25