How severe is CVE-2026-28718?

CVE-2026-28718 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-28718 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28718?

CVE-2026-28718 affects Acronis Cyber Protect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28718?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-28718 have an EU (EUVD) identifier?

Yes. CVE-2026-28718 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9953.

When was CVE-2026-28718 published?

CVE-2026-28718 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2026-28718

CVE-2026-28718 is a high-severity vulnerability in Acronis Cyber Protect with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-779.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (26th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9953
Weakness: CWE-779
Affected product: Acronis Cyber Protect
Published: 2026-03-06
Last modified: 2026-06-17

Description

Denial of service due to insufficient input validation in authentication logging. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.

Frequently asked questions

What is CVE-2026-28718?: Denial of service due to insufficient input validation in authentication logging. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.
How severe is CVE-2026-28718?: CVE-2026-28718 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-28718 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (26th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28718?: CVE-2026-28718 affects Acronis Cyber Protect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28718?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-28718 have an EU (EUVD) identifier?: Yes. CVE-2026-28718 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9953.
When was CVE-2026-28718 published?: CVE-2026-28718 was published on 2026-03-06 and last updated on 2026-06-17.

References

https://security-advisory.acronis.com/advisories/SEC-8377

Affected products (1)

cpe:2.3:a:acronis:cyber_protect:*:*:*:*:*:*:*:*

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