Local privilege escalation due to improper soft link handling. The following products are affected: Acronis Cyber Protect 17 (Windows) before build 41186.
CVE-2026-28721
HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence
Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-03-06. a secondary CVSS source baseline 7.3; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EG Risk
- 37(Track)EG Risk 37/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity73% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 5%
- KEV
- Not listed
Published
March 6, 2026
Last Modified
June 17, 2026
References (1)
- security@acronishttps://security-advisory.acronis.com/advisories/SEC-8445
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-27 13:50 UTCEG score recompute
- 2026-07-27 13:50 UTCGHSA enrichment
Related CVEs(same CWE)
Same CWE
10 shownCWE-610
- CVE-2019-7290EG 10.0CRITICAL
- CVE-2017-16088EG 10.0CRITICAL
- CVE-2014-125044NVD 6.3EG 9.8CRITICAL
- CVE-2021-20042EG 9.8CRITICAL
- CVE-2020-14057EG 9.8CRITICAL
- CVE-2020-9752EG 9.8CRITICAL
- CVE-2019-7195EG 9.8 KEVEPSS p100CRITICAL
- CVE-2019-7194EG 9.8 KEVEPSS p100CRITICAL
- CVE-2021-27648EG 9.0CRITICAL
- CVE-2021-27406EG 8.8HIGH
Frequently asked(5)
What is CVE-2026-28721?
CVE-2026-28721 is a high vulnerability published on March 6, 2026. Local privilege escalation due to improper soft link handling. The following products are affected: Acronis Cyber Protect 17 (Windows) before build 41186.
When was CVE-2026-28721 disclosed?
CVE-2026-28721 was first published in the National Vulnerability Database on March 6, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-28721 actively exploited?
CVE-2026-28721 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.9% of all scored CVEs.
What is the CVSS score of CVE-2026-28721?
CVE-2026-28721 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2026-28721?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-28721, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-28721
Is Your Infrastructure Affected by CVE-2026-28721?
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