VulnerabilityPublished 5 Mar 2026Updated 9 Mar 2026

CVE-2026-28714: Acronis Cyber Protect 17 · CWE-522

Affects Acronis Cyber Protect 17Source CVE Database V5

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Not known to be exploited · CVSS 4.8 Medium : upgrade to 41186 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.0 base score

4.8Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 41186

CVSS:3.0/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector: Adjacent
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Adjacent: The vulnerable component is bound to the network stack, but the attack is limited at the protocol level to a logically adjacent topology. This can mean an attack must be launched from the same shared physical (e.g., Bluetooth or IEEE 802.11) or logical (e.g., local IP subnet) network, or from within a secure or otherwise limited administrative domain (e.g., MPLS, secure VPN to an administrative network zone).
Attack Complexity: High: A successful attack depends on conditions beyond the attacker's control. That is, a successful attack cannot be accomplished at will, but requires the attacker to invest in some measurable amount of effort in preparation or execution against the vulnerable component before a successful attack can be expected. For example, a successful attack may require an attacker to: gather knowledge about the environment in which the vulnerable target/component exists; prepare the target environment to improve exploit reliability; or inject themselves into the logical network path between the target and the resource requested by the victim in order to read and/or modify network communications (e.g., a man in the middle attack).
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 5 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Acronis Cyber Protect 17 to 41186.

Affected software

Product	Affected	Fixed in
AcronisAcronis Cyber Protect 17	Affected ≥ unspecified, < 41186	Fixed in 41186

AI-suggested

To mitigate CVE-2026-28714, organizations should implement several specific measures beyond generic patching advice. First, restrict network access to Acronis Cyber Protect 17 management interfaces and communication channels to trusted and authenticated users only, ideally through network segmentation, VPNs, or zero-trust architectures. Second, monitor network traffic for unusual transmission of cryptographic material or other sensitive data using deep packet inspection or network intrusion detection systems configured to detect anomalies in Acronis-related traffic. Third, educate users about the risks of social engineering and phishing attacks that could trigger the required user interaction for exploitation, emphasizing cautious behavior when interacting with prompts or requests related to Acronis software. Fourth, maintain up-to-date backups and ensure that recovery procedures are tested, as a precaution against potential compromise. If possible, consider temporary mitigation by disabling or limiting features that involve transmission of cryptographic material until a fix is released.

Description

Unnecessary transmission of sensitive cryptographic material. The following products are affected: Acronis Cyber Protect 17 (Linux, Windows) before build 41186.

Impact

The primary impact of CVE-2026-28714 is the potential compromise of confidentiality for organizations using affected versions of Acronis Cyber Protect 17. Exposure of sensitive cryptographic material could allow attackers to decrypt protected data, impersonate legitimate services, or bypass security controls relying on cryptographic protections. Although the vulnerability does not affect integrity or availability, the loss of confidentiality can have severe consequences, including data breaches, intellectual property theft, and erosion of trust in backup and cybersecurity solutions. Organizations relying on Acronis Cyber Protect 17 for critical data protection and cybersecurity may face increased risk of targeted attacks, especially in environments where network segmentation is weak or user interaction can be manipulated. The requirement for user interaction and high attack complexity somewhat limits the ease of exploitation, but the adjacent network attack vector means that attackers within the same local or VPN network could exploit this vulnerability. This risk is particularly relevant for enterprises with remote or hybrid workforces, where network boundaries are less controlled. The absence of known exploits in the wild suggests a window of opportunity for organizations to proactively address the issue before active exploitation occurs.

CWE-522Insufficiently Protected Credentials (opens in a new tab)
Class weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.
Architecture and Design
Use an appropriate security mechanism to protect the credentials.
Architecture and Design
Make appropriate use of cryptography to protect the credentials.
Implementation
Use industry standards to protect the credentials (e.g. LDAP, keystore, etc.).
OWASP Cheat Sheets
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V2.10.3 (opens in a new tab)
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
Attack patterns
Session Sidejacking (opens in a new tab)
Signature Spoofing by Key Theft (opens in a new tab)
Password Recovery Exploitation (opens in a new tab)
Kerberoasting (opens in a new tab)
Modify Existing Service (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

security-advisory.acronis.com/advisories/SEC-5383 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Mar 2026, 19:41 UTC

WeaknessesCWE-522

Technical details

References

Community reviews

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